Home / 18,996.31-28,491.81-6,516.13

Finding the Fourth Proportional to 18,996.31, 28,491.81 and 6,516.13

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Solution

The fourth proportional to 18,996.31, 28,491.81 and 6,516.13 is: 9,773.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,996.31 : 28,491.81 = 6,516.13 : x
  2. Step 2: Convert to fraction form
    18,996.31/28,491.81 = 6,516.13/x
  3. Step 3: Cross multiply
    18,996.31x = 28,491.81 × 6,516.13
  4. Step 4: Simplify right side
    18,996.31x = 185,656,337.90
  5. Step 5: Solve for x
    x = 185,656,337.90/18,996.31
  6. Step 6: Final answer
    x = 9,773.28

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1.5x scale

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.