Home / 14,116.78-21,172.20-9,104.14

Finding the Fourth Proportional to 14,116.78, 21,172.20 and 9,104.14

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Solution

The fourth proportional to 14,116.78, 21,172.20 and 9,104.14 is: 13,654.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,116.78 : 21,172.20 = 9,104.14 : x
  2. Step 2: Convert to fraction form
    14,116.78/21,172.20 = 9,104.14/x
  3. Step 3: Cross multiply
    14,116.78x = 21,172.20 × 9,104.14
  4. Step 4: Simplify right side
    14,116.78x = 192,754,672.91
  5. Step 5: Solve for x
    x = 192,754,672.91/14,116.78
  6. Step 6: Final answer
    x = 13,654.29

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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.