Home / 18,290.06-25,240.15-9,906.50

Finding the Fourth Proportional to 18,290.06, 25,240.15 and 9,906.50

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Solution

The fourth proportional to 18,290.06, 25,240.15 and 9,906.50 is: 13,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.06 : 25,240.15 = 9,906.50 : x
  2. Step 2: Convert to fraction form
    18,290.06/25,240.15 = 9,906.50/x
  3. Step 3: Cross multiply
    18,290.06x = 25,240.15 × 9,906.50
  4. Step 4: Simplify right side
    18,290.06x = 250,041,545.98
  5. Step 5: Solve for x
    x = 250,041,545.98/18,290.06
  6. Step 6: Final answer
    x = 13,670.90

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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.