Home / 8,747.90-12,071.78-5,163.04

Finding the Fourth Proportional to 8,747.90, 12,071.78 and 5,163.04

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Solution

The fourth proportional to 8,747.90, 12,071.78 and 5,163.04 is: 7,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.90 : 12,071.78 = 5,163.04 : x
  2. Step 2: Convert to fraction form
    8,747.90/12,071.78 = 5,163.04/x
  3. Step 3: Cross multiply
    8,747.90x = 12,071.78 × 5,163.04
  4. Step 4: Simplify right side
    8,747.90x = 62,327,120.69
  5. Step 5: Solve for x
    x = 62,327,120.69/8,747.90
  6. Step 6: Final answer
    x = 7,124.81

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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.