Home / 11,472.62-15,810.56-8,280.27

Finding the Fourth Proportional to 11,472.62, 15,810.56 and 8,280.27

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Solution

The fourth proportional to 11,472.62, 15,810.56 and 8,280.27 is: 11,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,472.62 : 15,810.56 = 8,280.27 : x
  2. Step 2: Convert to fraction form
    11,472.62/15,810.56 = 8,280.27/x
  3. Step 3: Cross multiply
    11,472.62x = 15,810.56 × 8,280.27
  4. Step 4: Simplify right side
    11,472.62x = 130,915,664.25
  5. Step 5: Solve for x
    x = 130,915,664.25/11,472.62
  6. Step 6: Final answer
    x = 11,411.14

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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.