Home / 14,954.20-20,650.88-12,817.42

Finding the Fourth Proportional to 14,954.20, 20,650.88 and 12,817.42

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Solution

The fourth proportional to 14,954.20, 20,650.88 and 12,817.42 is: 17,700.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,954.20 : 20,650.88 = 12,817.42 : x
  2. Step 2: Convert to fraction form
    14,954.20/20,650.88 = 12,817.42/x
  3. Step 3: Cross multiply
    14,954.20x = 20,650.88 × 12,817.42
  4. Step 4: Simplify right side
    14,954.20x = 264,691,002.33
  5. Step 5: Solve for x
    x = 264,691,002.33/14,954.20
  6. Step 6: Final answer
    x = 17,700.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.