Home / 10,743.71-16,140.26-7,631.28

Finding the Fourth Proportional to 10,743.71, 16,140.26 and 7,631.28

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Solution

The fourth proportional to 10,743.71, 16,140.26 and 7,631.28 is: 11,464.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,743.71 : 16,140.26 = 7,631.28 : x
  2. Step 2: Convert to fraction form
    10,743.71/16,140.26 = 7,631.28/x
  3. Step 3: Cross multiply
    10,743.71x = 16,140.26 × 7,631.28
  4. Step 4: Simplify right side
    10,743.71x = 123,170,862.41
  5. Step 5: Solve for x
    x = 123,170,862.41/10,743.71
  6. Step 6: Final answer
    x = 11,464.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.