Home / 12,439.35-17,166.38-6,774.11

Finding the Fourth Proportional to 12,439.35, 17,166.38 and 6,774.11

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Solution

The fourth proportional to 12,439.35, 17,166.38 and 6,774.11 is: 9,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.35 : 17,166.38 = 6,774.11 : x
  2. Step 2: Convert to fraction form
    12,439.35/17,166.38 = 6,774.11/x
  3. Step 3: Cross multiply
    12,439.35x = 17,166.38 × 6,774.11
  4. Step 4: Simplify right side
    12,439.35x = 116,286,826.72
  5. Step 5: Solve for x
    x = 116,286,826.72/12,439.35
  6. Step 6: Final answer
    x = 9,348.30

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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.