Home / 13,780.02-20,612.18-11,614.12

Finding the Fourth Proportional to 13,780.02, 20,612.18 and 11,614.12

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Solution

The fourth proportional to 13,780.02, 20,612.18 and 11,614.12 is: 17,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.02 : 20,612.18 = 11,614.12 : x
  2. Step 2: Convert to fraction form
    13,780.02/20,612.18 = 11,614.12/x
  3. Step 3: Cross multiply
    13,780.02x = 20,612.18 × 11,614.12
  4. Step 4: Simplify right side
    13,780.02x = 239,392,353.52
  5. Step 5: Solve for x
    x = 239,392,353.52/13,780.02
  6. Step 6: Final answer
    x = 17,372.42

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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.