Home / 12,966.24-19,447.20-4,207.44

Finding the Fourth Proportional to 12,966.24, 19,447.20 and 4,207.44

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Solution

The fourth proportional to 12,966.24, 19,447.20 and 4,207.44 is: 6,310.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.24 : 19,447.20 = 4,207.44 : x
  2. Step 2: Convert to fraction form
    12,966.24/19,447.20 = 4,207.44/x
  3. Step 3: Cross multiply
    12,966.24x = 19,447.20 × 4,207.44
  4. Step 4: Simplify right side
    12,966.24x = 81,822,927.17
  5. Step 5: Solve for x
    x = 81,822,927.17/12,966.24
  6. Step 6: Final answer
    x = 6,310.46

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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.