Home / 13,343.28-20,025.18-12,658.08

Finding the Fourth Proportional to 13,343.28, 20,025.18 and 12,658.08

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Solution

The fourth proportional to 13,343.28, 20,025.18 and 12,658.08 is: 18,996.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.28 : 20,025.18 = 12,658.08 : x
  2. Step 2: Convert to fraction form
    13,343.28/20,025.18 = 12,658.08/x
  3. Step 3: Cross multiply
    13,343.28x = 20,025.18 × 12,658.08
  4. Step 4: Simplify right side
    13,343.28x = 253,480,330.45
  5. Step 5: Solve for x
    x = 253,480,330.45/13,343.28
  6. Step 6: Final answer
    x = 18,996.85

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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.