Home / 10,818.68-16,220.44-4,972.12

Finding the Fourth Proportional to 10,818.68, 16,220.44 and 4,972.12

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Solution

The fourth proportional to 10,818.68, 16,220.44 and 4,972.12 is: 7,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.68 : 16,220.44 = 4,972.12 : x
  2. Step 2: Convert to fraction form
    10,818.68/16,220.44 = 4,972.12/x
  3. Step 3: Cross multiply
    10,818.68x = 16,220.44 × 4,972.12
  4. Step 4: Simplify right side
    10,818.68x = 80,649,974.13
  5. Step 5: Solve for x
    x = 80,649,974.13/10,818.68
  6. Step 6: Final answer
    x = 7,454.70

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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.