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Finding the Fourth Proportional to 14,872.61, 20,525.50 and 8,159.54

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Solution

The fourth proportional to 14,872.61, 20,525.50 and 8,159.54 is: 11,260.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.61 : 20,525.50 = 8,159.54 : x
  2. Step 2: Convert to fraction form
    14,872.61/20,525.50 = 8,159.54/x
  3. Step 3: Cross multiply
    14,872.61x = 20,525.50 × 8,159.54
  4. Step 4: Simplify right side
    14,872.61x = 167,478,545.84
  5. Step 5: Solve for x
    x = 167,478,545.84/14,872.61
  6. Step 6: Final answer
    x = 11,260.87

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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.