Home / 10,207.41-15,311.18-2,811.70

Finding the Fourth Proportional to 10,207.41, 15,311.18 and 2,811.70

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Solution

The fourth proportional to 10,207.41, 15,311.18 and 2,811.70 is: 4,217.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.41 : 15,311.18 = 2,811.70 : x
  2. Step 2: Convert to fraction form
    10,207.41/15,311.18 = 2,811.70/x
  3. Step 3: Cross multiply
    10,207.41x = 15,311.18 × 2,811.70
  4. Step 4: Simplify right side
    10,207.41x = 43,050,444.81
  5. Step 5: Solve for x
    x = 43,050,444.81/10,207.41
  6. Step 6: Final answer
    x = 4,217.57

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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.