Home / 12,672.35-17,488.20-6,930.13

Finding the Fourth Proportional to 12,672.35, 17,488.20 and 6,930.13

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Solution

The fourth proportional to 12,672.35, 17,488.20 and 6,930.13 is: 9,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.35 : 17,488.20 = 6,930.13 : x
  2. Step 2: Convert to fraction form
    12,672.35/17,488.20 = 6,930.13/x
  3. Step 3: Cross multiply
    12,672.35x = 17,488.20 × 6,930.13
  4. Step 4: Simplify right side
    12,672.35x = 121,195,563.71
  5. Step 5: Solve for x
    x = 121,195,563.71/12,672.35
  6. Step 6: Final answer
    x = 9,563.78

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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.