Home / 9,112.92-12,575.88-5,335.38

Finding the Fourth Proportional to 9,112.92, 12,575.88 and 5,335.38

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Solution

The fourth proportional to 9,112.92, 12,575.88 and 5,335.38 is: 7,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.92 : 12,575.88 = 5,335.38 : x
  2. Step 2: Convert to fraction form
    9,112.92/12,575.88 = 5,335.38/x
  3. Step 3: Cross multiply
    9,112.92x = 12,575.88 × 5,335.38
  4. Step 4: Simplify right side
    9,112.92x = 67,097,098.63
  5. Step 5: Solve for x
    x = 67,097,098.63/9,112.92
  6. Step 6: Final answer
    x = 7,362.85

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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.