Home / 10,660.28-15,990.52-4,084.90

Finding the Fourth Proportional to 10,660.28, 15,990.52 and 4,084.90

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Solution

The fourth proportional to 10,660.28, 15,990.52 and 4,084.90 is: 6,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.28 : 15,990.52 = 4,084.90 : x
  2. Step 2: Convert to fraction form
    10,660.28/15,990.52 = 4,084.90/x
  3. Step 3: Cross multiply
    10,660.28x = 15,990.52 × 4,084.90
  4. Step 4: Simplify right side
    10,660.28x = 65,319,675.15
  5. Step 5: Solve for x
    x = 65,319,675.15/10,660.28
  6. Step 6: Final answer
    x = 6,127.39

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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.