Home / 8,487.38-12,732.48-2,642.82

Finding the Fourth Proportional to 8,487.38, 12,732.48 and 2,642.82

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Solution

The fourth proportional to 8,487.38, 12,732.48 and 2,642.82 is: 3,964.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.38 : 12,732.48 = 2,642.82 : x
  2. Step 2: Convert to fraction form
    8,487.38/12,732.48 = 2,642.82/x
  3. Step 3: Cross multiply
    8,487.38x = 12,732.48 × 2,642.82
  4. Step 4: Simplify right side
    8,487.38x = 33,649,652.79
  5. Step 5: Solve for x
    x = 33,649,652.79/8,487.38
  6. Step 6: Final answer
    x = 3,964.67

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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.