Home / 14,817.20-20,447.57-8,102.77

Finding the Fourth Proportional to 14,817.20, 20,447.57 and 8,102.77

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Solution

The fourth proportional to 14,817.20, 20,447.57 and 8,102.77 is: 11,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,817.20 : 20,447.57 = 8,102.77 : x
  2. Step 2: Convert to fraction form
    14,817.20/20,447.57 = 8,102.77/x
  3. Step 3: Cross multiply
    14,817.20x = 20,447.57 × 8,102.77
  4. Step 4: Simplify right side
    14,817.20x = 165,681,925.91
  5. Step 5: Solve for x
    x = 165,681,925.91/14,817.20
  6. Step 6: Final answer
    x = 11,181.73

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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.