Home / 10,720.71-14,792.19-6,472.47

Finding the Fourth Proportional to 10,720.71, 14,792.19 and 6,472.47

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Solution

The fourth proportional to 10,720.71, 14,792.19 and 6,472.47 is: 8,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.71 : 14,792.19 = 6,472.47 : x
  2. Step 2: Convert to fraction form
    10,720.71/14,792.19 = 6,472.47/x
  3. Step 3: Cross multiply
    10,720.71x = 14,792.19 × 6,472.47
  4. Step 4: Simplify right side
    10,720.71x = 95,742,006.01
  5. Step 5: Solve for x
    x = 95,742,006.01/10,720.71
  6. Step 6: Final answer
    x = 8,930.57

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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.