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Finding the Fourth Proportional to 14,490.78, 21,694.80 and 9,545.34

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Solution

The fourth proportional to 14,490.78, 21,694.80 and 9,545.34 is: 14,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.78 : 21,694.80 = 9,545.34 : x
  2. Step 2: Convert to fraction form
    14,490.78/21,694.80 = 9,545.34/x
  3. Step 3: Cross multiply
    14,490.78x = 21,694.80 × 9,545.34
  4. Step 4: Simplify right side
    14,490.78x = 207,084,242.23
  5. Step 5: Solve for x
    x = 207,084,242.23/14,490.78
  6. Step 6: Final answer
    x = 14,290.76

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