Home / 10,621.68-15,932.58-5,073.78

Finding the Fourth Proportional to 10,621.68, 15,932.58 and 5,073.78

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Solution

The fourth proportional to 10,621.68, 15,932.58 and 5,073.78 is: 7,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.68 : 15,932.58 = 5,073.78 : x
  2. Step 2: Convert to fraction form
    10,621.68/15,932.58 = 5,073.78/x
  3. Step 3: Cross multiply
    10,621.68x = 15,932.58 × 5,073.78
  4. Step 4: Simplify right side
    10,621.68x = 80,838,405.75
  5. Step 5: Solve for x
    x = 80,838,405.75/10,621.68
  6. Step 6: Final answer
    x = 7,610.70

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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.