Home / 13,228.24-18,253.20-9,685.12

Finding the Fourth Proportional to 13,228.24, 18,253.20 and 9,685.12

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Solution

The fourth proportional to 13,228.24, 18,253.20 and 9,685.12 is: 13,364.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.24 : 18,253.20 = 9,685.12 : x
  2. Step 2: Convert to fraction form
    13,228.24/18,253.20 = 9,685.12/x
  3. Step 3: Cross multiply
    13,228.24x = 18,253.20 × 9,685.12
  4. Step 4: Simplify right side
    13,228.24x = 176,784,432.38
  5. Step 5: Solve for x
    x = 176,784,432.38/13,228.24
  6. Step 6: Final answer
    x = 13,364.17

Related Problems

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Half scale
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Double scale
Find fourth proportional to 13,229.24, 18,254.58 and 9,686.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.