Home / 18,290.41-25,240.76-9,906.91

Finding the Fourth Proportional to 18,290.41, 25,240.76 and 9,906.91

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Solution

The fourth proportional to 18,290.41, 25,240.76 and 9,906.91 is: 13,671.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.41 : 25,240.76 = 9,906.91 : x
  2. Step 2: Convert to fraction form
    18,290.41/25,240.76 = 9,906.91/x
  3. Step 3: Cross multiply
    18,290.41x = 25,240.76 × 9,906.91
  4. Step 4: Simplify right side
    18,290.41x = 250,057,937.65
  5. Step 5: Solve for x
    x = 250,057,937.65/18,290.41
  6. Step 6: Final answer
    x = 13,671.53

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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.