Home / 13,397.62-18,488.90-7,348.39

Finding the Fourth Proportional to 13,397.62, 18,488.90 and 7,348.39

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Solution

The fourth proportional to 13,397.62, 18,488.90 and 7,348.39 is: 10,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.62 : 18,488.90 = 7,348.39 : x
  2. Step 2: Convert to fraction form
    13,397.62/18,488.90 = 7,348.39/x
  3. Step 3: Cross multiply
    13,397.62x = 18,488.90 × 7,348.39
  4. Step 4: Simplify right side
    13,397.62x = 135,863,620.02
  5. Step 5: Solve for x
    x = 135,863,620.02/13,397.62
  6. Step 6: Final answer
    x = 10,140.88

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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.