Home / 18,290.16-25,240.46-9,906.66

Finding the Fourth Proportional to 18,290.16, 25,240.46 and 9,906.66

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Solution

The fourth proportional to 18,290.16, 25,240.46 and 9,906.66 is: 13,671.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.16 : 25,240.46 = 9,906.66 : x
  2. Step 2: Convert to fraction form
    18,290.16/25,240.46 = 9,906.66/x
  3. Step 3: Cross multiply
    18,290.16x = 25,240.46 × 9,906.66
  4. Step 4: Simplify right side
    18,290.16x = 250,048,605.93
  5. Step 5: Solve for x
    x = 250,048,605.93/18,290.16
  6. Step 6: Final answer
    x = 13,671.21

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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.