Home / 9,111.28-13,666.92-6,519.28

Finding the Fourth Proportional to 9,111.28, 13,666.92 and 6,519.28

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Solution

The fourth proportional to 9,111.28, 13,666.92 and 6,519.28 is: 9,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.28 : 13,666.92 = 6,519.28 : x
  2. Step 2: Convert to fraction form
    9,111.28/13,666.92 = 6,519.28/x
  3. Step 3: Cross multiply
    9,111.28x = 13,666.92 × 6,519.28
  4. Step 4: Simplify right side
    9,111.28x = 89,098,478.22
  5. Step 5: Solve for x
    x = 89,098,478.22/9,111.28
  6. Step 6: Final answer
    x = 9,778.92

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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.