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Finding the Fourth Proportional to 14,919.29, 20,587.02 and 8,630.49

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Solution

The fourth proportional to 14,919.29, 20,587.02 and 8,630.49 is: 11,909.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919.29 : 20,587.02 = 8,630.49 : x
  2. Step 2: Convert to fraction form
    14,919.29/20,587.02 = 8,630.49/x
  3. Step 3: Cross multiply
    14,919.29x = 20,587.02 × 8,630.49
  4. Step 4: Simplify right side
    14,919.29x = 177,676,070.24
  5. Step 5: Solve for x
    x = 177,676,070.24/14,919.29
  6. Step 6: Final answer
    x = 11,909.15

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.