Home / 10,622.40-15,909.29-5,079.63

Finding the Fourth Proportional to 10,622.40, 15,909.29 and 5,079.63

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Solution

The fourth proportional to 10,622.40, 15,909.29 and 5,079.63 is: 7,607.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.40 : 15,909.29 = 5,079.63 : x
  2. Step 2: Convert to fraction form
    10,622.40/15,909.29 = 5,079.63/x
  3. Step 3: Cross multiply
    10,622.40x = 15,909.29 × 5,079.63
  4. Step 4: Simplify right side
    10,622.40x = 80,813,306.76
  5. Step 5: Solve for x
    x = 80,813,306.76/10,622.40
  6. Step 6: Final answer
    x = 7,607.82

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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.