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Finding the Fourth Proportional to 14,812.00, 20,442.48 and 8,440.89

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Solution

The fourth proportional to 14,812.00, 20,442.48 and 8,440.89 is: 11,649.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,812.00 : 20,442.48 = 8,440.89 : x
  2. Step 2: Convert to fraction form
    14,812.00/20,442.48 = 8,440.89/x
  3. Step 3: Cross multiply
    14,812.00x = 20,442.48 × 8,440.89
  4. Step 4: Simplify right side
    14,812.00x = 172,552,616.69
  5. Step 5: Solve for x
    x = 172,552,616.69/14,812.00
  6. Step 6: Final answer
    x = 11,649.52

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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.