Home / 19,949.76-29,918.16-9,418.14

Finding the Fourth Proportional to 19,949.76, 29,918.16 and 9,418.14

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Solution

The fourth proportional to 19,949.76, 29,918.16 and 9,418.14 is: 14,124.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,949.76 : 29,918.16 = 9,418.14 : x
  2. Step 2: Convert to fraction form
    19,949.76/29,918.16 = 9,418.14/x
  3. Step 3: Cross multiply
    19,949.76x = 29,918.16 × 9,418.14
  4. Step 4: Simplify right side
    19,949.76x = 281,773,419.42
  5. Step 5: Solve for x
    x = 281,773,419.42/19,949.76
  6. Step 6: Final answer
    x = 14,124.15

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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.