Home / 16,378.80-24,562.20-5,288.40

Finding the Fourth Proportional to 16,378.80, 24,562.20 and 5,288.40

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Solution

The fourth proportional to 16,378.80, 24,562.20 and 5,288.40 is: 7,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,378.80 : 24,562.20 = 5,288.40 : x
  2. Step 2: Convert to fraction form
    16,378.80/24,562.20 = 5,288.40/x
  3. Step 3: Cross multiply
    16,378.80x = 24,562.20 × 5,288.40
  4. Step 4: Simplify right side
    16,378.80x = 129,894,738.48
  5. Step 5: Solve for x
    x = 129,894,738.48/16,378.80
  6. Step 6: Final answer
    x = 7,930.66

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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.