Home / 13,253.40-18,280.17-8,533.17

Finding the Fourth Proportional to 13,253.40, 18,280.17 and 8,533.17

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Solution

The fourth proportional to 13,253.40, 18,280.17 and 8,533.17 is: 11,769.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.40 : 18,280.17 = 8,533.17 : x
  2. Step 2: Convert to fraction form
    13,253.40/18,280.17 = 8,533.17/x
  3. Step 3: Cross multiply
    13,253.40x = 18,280.17 × 8,533.17
  4. Step 4: Simplify right side
    13,253.40x = 155,987,798.24
  5. Step 5: Solve for x
    x = 155,987,798.24/13,253.40
  6. Step 6: Final answer
    x = 11,769.64

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Double scale
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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.