Home / 10,278.68-15,418.06-2,487.48

Finding the Fourth Proportional to 10,278.68, 15,418.06 and 2,487.48

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Solution

The fourth proportional to 10,278.68, 15,418.06 and 2,487.48 is: 3,731.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.68 : 15,418.06 = 2,487.48 : x
  2. Step 2: Convert to fraction form
    10,278.68/15,418.06 = 2,487.48/x
  3. Step 3: Cross multiply
    10,278.68x = 15,418.06 × 2,487.48
  4. Step 4: Simplify right side
    10,278.68x = 38,352,115.89
  5. Step 5: Solve for x
    x = 38,352,115.89/10,278.68
  6. Step 6: Final answer
    x = 3,731.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.