Home / 10,818.18-16,230.14-3,422.76

Finding the Fourth Proportional to 10,818.18, 16,230.14 and 3,422.76

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Solution

The fourth proportional to 10,818.18, 16,230.14 and 3,422.76 is: 5,135.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.18 : 16,230.14 = 3,422.76 : x
  2. Step 2: Convert to fraction form
    10,818.18/16,230.14 = 3,422.76/x
  3. Step 3: Cross multiply
    10,818.18x = 16,230.14 × 3,422.76
  4. Step 4: Simplify right side
    10,818.18x = 55,551,856.87
  5. Step 5: Solve for x
    x = 55,551,856.87/10,818.18
  6. Step 6: Final answer
    x = 5,135.05

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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.