Home / 12,077.12-16,626.11-10,391.69

Finding the Fourth Proportional to 12,077.12, 16,626.11 and 10,391.69

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Solution

The fourth proportional to 12,077.12, 16,626.11 and 10,391.69 is: 14,305.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.12 : 16,626.11 = 10,391.69 : x
  2. Step 2: Convert to fraction form
    12,077.12/16,626.11 = 10,391.69/x
  3. Step 3: Cross multiply
    12,077.12x = 16,626.11 × 10,391.69
  4. Step 4: Simplify right side
    12,077.12x = 172,773,245.94
  5. Step 5: Solve for x
    x = 172,773,245.94/12,077.12
  6. Step 6: Final answer
    x = 14,305.84

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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.