Home / 9,781.13-13,497.96-5,304.86

Finding the Fourth Proportional to 9,781.13, 13,497.96 and 5,304.86

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Solution

The fourth proportional to 9,781.13, 13,497.96 and 5,304.86 is: 7,320.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781.13 : 13,497.96 = 5,304.86 : x
  2. Step 2: Convert to fraction form
    9,781.13/13,497.96 = 5,304.86/x
  3. Step 3: Cross multiply
    9,781.13x = 13,497.96 × 5,304.86
  4. Step 4: Simplify right side
    9,781.13x = 71,604,788.09
  5. Step 5: Solve for x
    x = 71,604,788.09/9,781.13
  6. Step 6: Final answer
    x = 7,320.71

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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.