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Finding the Fourth Proportional to 14,691.00, 21,987.77 and 13,377.78

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Solution

The fourth proportional to 14,691.00, 21,987.77 and 13,377.78 is: 20,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,691.00 : 21,987.77 = 13,377.78 : x
  2. Step 2: Convert to fraction form
    14,691.00/21,987.77 = 13,377.78/x
  3. Step 3: Cross multiply
    14,691.00x = 21,987.77 × 13,377.78
  4. Step 4: Simplify right side
    14,691.00x = 294,147,565.32
  5. Step 5: Solve for x
    x = 294,147,565.32/14,691.00
  6. Step 6: Final answer
    x = 20,022.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.