Home / 13,438.02-20,160.52-12,593.86

Finding the Fourth Proportional to 13,438.02, 20,160.52 and 12,593.86

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Solution

The fourth proportional to 13,438.02, 20,160.52 and 12,593.86 is: 18,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.02 : 20,160.52 = 12,593.86 : x
  2. Step 2: Convert to fraction form
    13,438.02/20,160.52 = 12,593.86/x
  3. Step 3: Cross multiply
    13,438.02x = 20,160.52 × 12,593.86
  4. Step 4: Simplify right side
    13,438.02x = 253,898,766.41
  5. Step 5: Solve for x
    x = 253,898,766.41/13,438.02
  6. Step 6: Final answer
    x = 18,894.06

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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.