Home / 9,781.18-13,498.07-5,304.96

Finding the Fourth Proportional to 9,781.18, 13,498.07 and 5,304.96

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Solution

The fourth proportional to 9,781.18, 13,498.07 and 5,304.96 is: 7,320.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781.18 : 13,498.07 = 5,304.96 : x
  2. Step 2: Convert to fraction form
    9,781.18/13,498.07 = 5,304.96/x
  3. Step 3: Cross multiply
    9,781.18x = 13,498.07 × 5,304.96
  4. Step 4: Simplify right side
    9,781.18x = 71,606,694.90
  5. Step 5: Solve for x
    x = 71,606,694.90/9,781.18
  6. Step 6: Final answer
    x = 7,320.87

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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.