Home / 9,863.85-13,612.19-5,387.52

Finding the Fourth Proportional to 9,863.85, 13,612.19 and 5,387.52

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Solution

The fourth proportional to 9,863.85, 13,612.19 and 5,387.52 is: 7,434.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.85 : 13,612.19 = 5,387.52 : x
  2. Step 2: Convert to fraction form
    9,863.85/13,612.19 = 5,387.52/x
  3. Step 3: Cross multiply
    9,863.85x = 13,612.19 × 5,387.52
  4. Step 4: Simplify right side
    9,863.85x = 73,335,945.87
  5. Step 5: Solve for x
    x = 73,335,945.87/9,863.85
  6. Step 6: Final answer
    x = 7,434.82

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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.