Home / 19,454.11-29,180.91-8,921.14

Finding the Fourth Proportional to 19,454.11, 29,180.91 and 8,921.14

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Solution

The fourth proportional to 19,454.11, 29,180.91 and 8,921.14 is: 13,381.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,454.11 : 29,180.91 = 8,921.14 : x
  2. Step 2: Convert to fraction form
    19,454.11/29,180.91 = 8,921.14/x
  3. Step 3: Cross multiply
    19,454.11x = 29,180.91 × 8,921.14
  4. Step 4: Simplify right side
    19,454.11x = 260,326,983.44
  5. Step 5: Solve for x
    x = 260,326,983.44/19,454.11
  6. Step 6: Final answer
    x = 13,381.59

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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.