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Finding the Fourth Proportional to 14,565.21, 21,797.62 and 8,939.15

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Solution

The fourth proportional to 14,565.21, 21,797.62 and 8,939.15 is: 13,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,565.21 : 21,797.62 = 8,939.15 : x
  2. Step 2: Convert to fraction form
    14,565.21/21,797.62 = 8,939.15/x
  3. Step 3: Cross multiply
    14,565.21x = 21,797.62 × 8,939.15
  4. Step 4: Simplify right side
    14,565.21x = 194,852,194.82
  5. Step 5: Solve for x
    x = 194,852,194.82/14,565.21
  6. Step 6: Final answer
    x = 13,377.92

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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.