Home / 11,143.68-15,378.17-6,108.05

Finding the Fourth Proportional to 11,143.68, 15,378.17 and 6,108.05

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Solution

The fourth proportional to 11,143.68, 15,378.17 and 6,108.05 is: 8,429.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143.68 : 15,378.17 = 6,108.05 : x
  2. Step 2: Convert to fraction form
    11,143.68/15,378.17 = 6,108.05/x
  3. Step 3: Cross multiply
    11,143.68x = 15,378.17 × 6,108.05
  4. Step 4: Simplify right side
    11,143.68x = 93,930,523.84
  5. Step 5: Solve for x
    x = 93,930,523.84/11,143.68
  6. Step 6: Final answer
    x = 8,429.04

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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.