Home / 12,207.17-16,815.76-10,408.79

Finding the Fourth Proportional to 12,207.17, 16,815.76 and 10,408.79

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Solution

The fourth proportional to 12,207.17, 16,815.76 and 10,408.79 is: 14,338.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.17 : 16,815.76 = 10,408.79 : x
  2. Step 2: Convert to fraction form
    12,207.17/16,815.76 = 10,408.79/x
  3. Step 3: Cross multiply
    12,207.17x = 16,815.76 × 10,408.79
  4. Step 4: Simplify right side
    12,207.17x = 175,031,714.53
  5. Step 5: Solve for x
    x = 175,031,714.53/12,207.17
  6. Step 6: Final answer
    x = 14,338.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.