Home / 10,162.83-15,245.66-3,143.41

Finding the Fourth Proportional to 10,162.83, 15,245.66 and 3,143.41

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Solution

The fourth proportional to 10,162.83, 15,245.66 and 3,143.41 is: 4,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,162.83 : 15,245.66 = 3,143.41 : x
  2. Step 2: Convert to fraction form
    10,162.83/15,245.66 = 3,143.41/x
  3. Step 3: Cross multiply
    10,162.83x = 15,245.66 × 3,143.41
  4. Step 4: Simplify right side
    10,162.83x = 47,923,360.10
  5. Step 5: Solve for x
    x = 47,923,360.10/10,162.83
  6. Step 6: Final answer
    x = 4,715.55

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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.