Home / 11,061.80-15,265.02-6,345.78

Finding the Fourth Proportional to 11,061.80, 15,265.02 and 6,345.78

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Solution

The fourth proportional to 11,061.80, 15,265.02 and 6,345.78 is: 8,757.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,061.80 : 15,265.02 = 6,345.78 : x
  2. Step 2: Convert to fraction form
    11,061.80/15,265.02 = 6,345.78/x
  3. Step 3: Cross multiply
    11,061.80x = 15,265.02 × 6,345.78
  4. Step 4: Simplify right side
    11,061.80x = 96,868,458.62
  5. Step 5: Solve for x
    x = 96,868,458.62/11,061.80
  6. Step 6: Final answer
    x = 8,757.02

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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.