Home / 9,935.80-13,712.09-6,572.78

Finding the Fourth Proportional to 9,935.80, 13,712.09 and 6,572.78

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Solution

The fourth proportional to 9,935.80, 13,712.09 and 6,572.78 is: 9,070.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,935.80 : 13,712.09 = 6,572.78 : x
  2. Step 2: Convert to fraction form
    9,935.80/13,712.09 = 6,572.78/x
  3. Step 3: Cross multiply
    9,935.80x = 13,712.09 × 6,572.78
  4. Step 4: Simplify right side
    9,935.80x = 90,126,500.91
  5. Step 5: Solve for x
    x = 90,126,500.91/9,935.80
  6. Step 6: Final answer
    x = 9,070.89

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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.