Home / 18,298.31-25,251.35-11,125.62

Finding the Fourth Proportional to 18,298.31, 25,251.35 and 11,125.62

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Solution

The fourth proportional to 18,298.31, 25,251.35 and 11,125.62 is: 15,353.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.31 : 25,251.35 = 11,125.62 : x
  2. Step 2: Convert to fraction form
    18,298.31/25,251.35 = 11,125.62/x
  3. Step 3: Cross multiply
    18,298.31x = 25,251.35 × 11,125.62
  4. Step 4: Simplify right side
    18,298.31x = 280,936,868.96
  5. Step 5: Solve for x
    x = 280,936,868.96/18,298.31
  6. Step 6: Final answer
    x = 15,353.16

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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.