Home / 13,207.39-18,227.70-7,542.95

Finding the Fourth Proportional to 13,207.39, 18,227.70 and 7,542.95

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Solution

The fourth proportional to 13,207.39, 18,227.70 and 7,542.95 is: 10,410.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.39 : 18,227.70 = 7,542.95 : x
  2. Step 2: Convert to fraction form
    13,207.39/18,227.70 = 7,542.95/x
  3. Step 3: Cross multiply
    13,207.39x = 18,227.70 × 7,542.95
  4. Step 4: Simplify right side
    13,207.39x = 137,490,584.15
  5. Step 5: Solve for x
    x = 137,490,584.15/13,207.39
  6. Step 6: Final answer
    x = 10,410.13

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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.