Home / 18,254.42-25,191.09-9,870.92

Finding the Fourth Proportional to 18,254.42, 25,191.09 and 9,870.92

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Solution

The fourth proportional to 18,254.42, 25,191.09 and 9,870.92 is: 13,621.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.42 : 25,191.09 = 9,870.92 : x
  2. Step 2: Convert to fraction form
    18,254.42/25,191.09 = 9,870.92/x
  3. Step 3: Cross multiply
    18,254.42x = 25,191.09 × 9,870.92
  4. Step 4: Simplify right side
    18,254.42x = 248,659,202.61
  5. Step 5: Solve for x
    x = 248,659,202.61/18,254.42
  6. Step 6: Final answer
    x = 13,621.86

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Double scale
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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.