Home / 10,660.30-15,990.39-3,264.79

Finding the Fourth Proportional to 10,660.30, 15,990.39 and 3,264.79

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Solution

The fourth proportional to 10,660.30, 15,990.39 and 3,264.79 is: 4,897.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.30 : 15,990.39 = 3,264.79 : x
  2. Step 2: Convert to fraction form
    10,660.30/15,990.39 = 3,264.79/x
  3. Step 3: Cross multiply
    10,660.30x = 15,990.39 × 3,264.79
  4. Step 4: Simplify right side
    10,660.30x = 52,205,265.37
  5. Step 5: Solve for x
    x = 52,205,265.37/10,660.30
  6. Step 6: Final answer
    x = 4,897.17

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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.