Home / 16,190.20-24,278.10-7,427.80

Finding the Fourth Proportional to 16,190.20, 24,278.10 and 7,427.80

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Solution

The fourth proportional to 16,190.20, 24,278.10 and 7,427.80 is: 11,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,190.20 : 24,278.10 = 7,427.80 : x
  2. Step 2: Convert to fraction form
    16,190.20/24,278.10 = 7,427.80/x
  3. Step 3: Cross multiply
    16,190.20x = 24,278.10 × 7,427.80
  4. Step 4: Simplify right side
    16,190.20x = 180,332,871.18
  5. Step 5: Solve for x
    x = 180,332,871.18/16,190.20
  6. Step 6: Final answer
    x = 11,138.40

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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.