Home / 11,254.59-15,516.90-7,711.65

Finding the Fourth Proportional to 11,254.59, 15,516.90 and 7,711.65

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Solution

The fourth proportional to 11,254.59, 15,516.90 and 7,711.65 is: 10,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,254.59 : 15,516.90 = 7,711.65 : x
  2. Step 2: Convert to fraction form
    11,254.59/15,516.90 = 7,711.65/x
  3. Step 3: Cross multiply
    11,254.59x = 15,516.90 × 7,711.65
  4. Step 4: Simplify right side
    11,254.59x = 119,660,901.89
  5. Step 5: Solve for x
    x = 119,660,901.89/11,254.59
  6. Step 6: Final answer
    x = 10,632.19

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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.