Home / 14,198.31-21,294.72-5,431.17

Finding the Fourth Proportional to 14,198.31, 21,294.72 and 5,431.17

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Solution

The fourth proportional to 14,198.31, 21,294.72 and 5,431.17 is: 8,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,198.31 : 21,294.72 = 5,431.17 : x
  2. Step 2: Convert to fraction form
    14,198.31/21,294.72 = 5,431.17/x
  3. Step 3: Cross multiply
    14,198.31x = 21,294.72 × 5,431.17
  4. Step 4: Simplify right side
    14,198.31x = 115,655,244.42
  5. Step 5: Solve for x
    x = 115,655,244.42/14,198.31
  6. Step 6: Final answer
    x = 8,145.70

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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.