Home / 18,290.39-25,240.85-9,906.89

Finding the Fourth Proportional to 18,290.39, 25,240.85 and 9,906.89

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Solution

The fourth proportional to 18,290.39, 25,240.85 and 9,906.89 is: 13,671.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.39 : 25,240.85 = 9,906.89 : x
  2. Step 2: Convert to fraction form
    18,290.39/25,240.85 = 9,906.89/x
  3. Step 3: Cross multiply
    18,290.39x = 25,240.85 × 9,906.89
  4. Step 4: Simplify right side
    18,290.39x = 250,058,223.02
  5. Step 5: Solve for x
    x = 250,058,223.02/18,290.39
  6. Step 6: Final answer
    x = 13,671.57

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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.