Home / 11,124.59-15,349.01-7,151.13

Finding the Fourth Proportional to 11,124.59, 15,349.01 and 7,151.13

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Solution

The fourth proportional to 11,124.59, 15,349.01 and 7,151.13 is: 9,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,124.59 : 15,349.01 = 7,151.13 : x
  2. Step 2: Convert to fraction form
    11,124.59/15,349.01 = 7,151.13/x
  3. Step 3: Cross multiply
    11,124.59x = 15,349.01 × 7,151.13
  4. Step 4: Simplify right side
    11,124.59x = 109,762,730.13
  5. Step 5: Solve for x
    x = 109,762,730.13/11,124.59
  6. Step 6: Final answer
    x = 9,866.68

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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.