Home / 9,124.44-12,576.90-7,131.48

Finding the Fourth Proportional to 9,124.44, 12,576.90 and 7,131.48

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Solution

The fourth proportional to 9,124.44, 12,576.90 and 7,131.48 is: 9,829.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.44 : 12,576.90 = 7,131.48 : x
  2. Step 2: Convert to fraction form
    9,124.44/12,576.90 = 7,131.48/x
  3. Step 3: Cross multiply
    9,124.44x = 12,576.90 × 7,131.48
  4. Step 4: Simplify right side
    9,124.44x = 89,691,910.81
  5. Step 5: Solve for x
    x = 89,691,910.81/9,124.44
  6. Step 6: Final answer
    x = 9,829.85

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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.