Home / 14,521.60-20,039.64-8,234.20

Finding the Fourth Proportional to 14,521.60, 20,039.64 and 8,234.20

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Solution

The fourth proportional to 14,521.60, 20,039.64 and 8,234.20 is: 11,363.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.60 : 20,039.64 = 8,234.20 : x
  2. Step 2: Convert to fraction form
    14,521.60/20,039.64 = 8,234.20/x
  3. Step 3: Cross multiply
    14,521.60x = 20,039.64 × 8,234.20
  4. Step 4: Simplify right side
    14,521.60x = 165,010,403.69
  5. Step 5: Solve for x
    x = 165,010,403.69/14,521.60
  6. Step 6: Final answer
    x = 11,363.10

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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.