Home / 13,351.30-20,002.65-10,872.70

Finding the Fourth Proportional to 13,351.30, 20,002.65 and 10,872.70

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Solution

The fourth proportional to 13,351.30, 20,002.65 and 10,872.70 is: 16,289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.30 : 20,002.65 = 10,872.70 : x
  2. Step 2: Convert to fraction form
    13,351.30/20,002.65 = 10,872.70/x
  3. Step 3: Cross multiply
    13,351.30x = 20,002.65 × 10,872.70
  4. Step 4: Simplify right side
    13,351.30x = 217,482,812.66
  5. Step 5: Solve for x
    x = 217,482,812.66/13,351.30
  6. Step 6: Final answer
    x = 16,289.26

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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.