Home / 11,287.74-15,576.20-6,251.57

Finding the Fourth Proportional to 11,287.74, 15,576.20 and 6,251.57

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Solution

The fourth proportional to 11,287.74, 15,576.20 and 6,251.57 is: 8,626.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.74 : 15,576.20 = 6,251.57 : x
  2. Step 2: Convert to fraction form
    11,287.74/15,576.20 = 6,251.57/x
  3. Step 3: Cross multiply
    11,287.74x = 15,576.20 × 6,251.57
  4. Step 4: Simplify right side
    11,287.74x = 97,375,626.75
  5. Step 5: Solve for x
    x = 97,375,626.75/11,287.74
  6. Step 6: Final answer
    x = 8,626.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.