Home / 13,187.61-19,781.42-6,260.49

Finding the Fourth Proportional to 13,187.61, 19,781.42 and 6,260.49

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Solution

The fourth proportional to 13,187.61, 19,781.42 and 6,260.49 is: 9,390.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.61 : 19,781.42 = 6,260.49 : x
  2. Step 2: Convert to fraction form
    13,187.61/19,781.42 = 6,260.49/x
  3. Step 3: Cross multiply
    13,187.61x = 19,781.42 × 6,260.49
  4. Step 4: Simplify right side
    13,187.61x = 123,841,350.79
  5. Step 5: Solve for x
    x = 123,841,350.79/13,187.61
  6. Step 6: Final answer
    x = 9,390.74

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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.