Home / 10,387.84-15,581.76-3,462.88

Finding the Fourth Proportional to 10,387.84, 15,581.76 and 3,462.88

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Solution

The fourth proportional to 10,387.84, 15,581.76 and 3,462.88 is: 5,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.84 : 15,581.76 = 3,462.88 : x
  2. Step 2: Convert to fraction form
    10,387.84/15,581.76 = 3,462.88/x
  3. Step 3: Cross multiply
    10,387.84x = 15,581.76 × 3,462.88
  4. Step 4: Simplify right side
    10,387.84x = 53,957,765.07
  5. Step 5: Solve for x
    x = 53,957,765.07/10,387.84
  6. Step 6: Final answer
    x = 5,194.32

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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.