Home / 18,487.16-25,513.20-10,937.92

Finding the Fourth Proportional to 18,487.16, 25,513.20 and 10,937.92

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Solution

The fourth proportional to 18,487.16, 25,513.20 and 10,937.92 is: 15,094.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.16 : 25,513.20 = 10,937.92 : x
  2. Step 2: Convert to fraction form
    18,487.16/25,513.20 = 10,937.92/x
  3. Step 3: Cross multiply
    18,487.16x = 25,513.20 × 10,937.92
  4. Step 4: Simplify right side
    18,487.16x = 279,061,340.54
  5. Step 5: Solve for x
    x = 279,061,340.54/18,487.16
  6. Step 6: Final answer
    x = 15,094.87

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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.