Home / 10,685.28-14,748.81-6,210.81

Finding the Fourth Proportional to 10,685.28, 14,748.81 and 6,210.81

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Solution

The fourth proportional to 10,685.28, 14,748.81 and 6,210.81 is: 8,572.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685.28 : 14,748.81 = 6,210.81 : x
  2. Step 2: Convert to fraction form
    10,685.28/14,748.81 = 6,210.81/x
  3. Step 3: Cross multiply
    10,685.28x = 14,748.81 × 6,210.81
  4. Step 4: Simplify right side
    10,685.28x = 91,602,113.04
  5. Step 5: Solve for x
    x = 91,602,113.04/10,685.28
  6. Step 6: Final answer
    x = 8,572.74

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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.