Home / 13,451.20-20,176.80-10,337.20

Finding the Fourth Proportional to 13,451.20, 20,176.80 and 10,337.20

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Solution

The fourth proportional to 13,451.20, 20,176.80 and 10,337.20 is: 15,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.20 : 20,176.80 = 10,337.20 : x
  2. Step 2: Convert to fraction form
    13,451.20/20,176.80 = 10,337.20/x
  3. Step 3: Cross multiply
    13,451.20x = 20,176.80 × 10,337.20
  4. Step 4: Simplify right side
    13,451.20x = 208,571,616.96
  5. Step 5: Solve for x
    x = 208,571,616.96/13,451.20
  6. Step 6: Final answer
    x = 15,505.80

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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.