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Finding the Fourth Proportional to 14,677.59, 20,254.95 and 7,963.20

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Solution

The fourth proportional to 14,677.59, 20,254.95 and 7,963.20 is: 10,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,677.59 : 20,254.95 = 7,963.20 : x
  2. Step 2: Convert to fraction form
    14,677.59/20,254.95 = 7,963.20/x
  3. Step 3: Cross multiply
    14,677.59x = 20,254.95 × 7,963.20
  4. Step 4: Simplify right side
    14,677.59x = 161,294,217.84
  5. Step 5: Solve for x
    x = 161,294,217.84/14,677.59
  6. Step 6: Final answer
    x = 10,989.15

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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.