Home / 11,143.12-15,377.70-6,107

Finding the Fourth Proportional to 11,143.12, 15,377.70 and 6,107

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Solution

The fourth proportional to 11,143.12, 15,377.70 and 6,107 is: 8,427.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.12 : 15,377.70 = 6,107 : x
  2. Step 2: Convert to fraction form
    11,143.12/15,377.70 = 6,107/x
  3. Step 3: Cross multiply
    11,143.12x = 15,377.70 × 6,107
  4. Step 4: Simplify right side
    11,143.12x = 93,911,613.90
  5. Step 5: Solve for x
    x = 93,911,613.90/11,143.12
  6. Step 6: Final answer
    x = 8,427.77

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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.