Home / 9,702.39-13,390.41-5,395.91

Finding the Fourth Proportional to 9,702.39, 13,390.41 and 5,395.91

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Solution

The fourth proportional to 9,702.39, 13,390.41 and 5,395.91 is: 7,446.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,702.39 : 13,390.41 = 5,395.91 : x
  2. Step 2: Convert to fraction form
    9,702.39/13,390.41 = 5,395.91/x
  3. Step 3: Cross multiply
    9,702.39x = 13,390.41 × 5,395.91
  4. Step 4: Simplify right side
    9,702.39x = 72,253,447.22
  5. Step 5: Solve for x
    x = 72,253,447.22/9,702.39
  6. Step 6: Final answer
    x = 7,446.97

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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.