Home / 10,211.56-15,315.66-6,339.88

Finding the Fourth Proportional to 10,211.56, 15,315.66 and 6,339.88

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Solution

The fourth proportional to 10,211.56, 15,315.66 and 6,339.88 is: 9,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.56 : 15,315.66 = 6,339.88 : x
  2. Step 2: Convert to fraction form
    10,211.56/15,315.66 = 6,339.88/x
  3. Step 3: Cross multiply
    10,211.56x = 15,315.66 × 6,339.88
  4. Step 4: Simplify right side
    10,211.56x = 97,099,446.52
  5. Step 5: Solve for x
    x = 97,099,446.52/10,211.56
  6. Step 6: Final answer
    x = 9,508.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.