Home / 12,643.17-18,966.96-4,324.02

Finding the Fourth Proportional to 12,643.17, 18,966.96 and 4,324.02

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Solution

The fourth proportional to 12,643.17, 18,966.96 and 4,324.02 is: 6,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643.17 : 18,966.96 = 4,324.02 : x
  2. Step 2: Convert to fraction form
    12,643.17/18,966.96 = 4,324.02/x
  3. Step 3: Cross multiply
    12,643.17x = 18,966.96 × 4,324.02
  4. Step 4: Simplify right side
    12,643.17x = 82,013,514.38
  5. Step 5: Solve for x
    x = 82,013,514.38/12,643.17
  6. Step 6: Final answer
    x = 6,486.78

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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.