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Finding the Fourth Proportional to 14,691, 20,274.66 and 9,103.08

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Solution

The fourth proportional to 14,691, 20,274.66 and 9,103.08 is: 12,562.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,691 : 20,274.66 = 9,103.08 : x
  2. Step 2: Convert to fraction form
    14,691/20,274.66 = 9,103.08/x
  3. Step 3: Cross multiply
    14,691x = 20,274.66 × 9,103.08
  4. Step 4: Simplify right side
    14,691x = 184,561,851.95
  5. Step 5: Solve for x
    x = 184,561,851.95/14,691
  6. Step 6: Final answer
    x = 12,562.92

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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.