Home / 9,275.12-12,792.68-6,442.49

Finding the Fourth Proportional to 9,275.12, 12,792.68 and 6,442.49

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Solution

The fourth proportional to 9,275.12, 12,792.68 and 6,442.49 is: 8,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,275.12 : 12,792.68 = 6,442.49 : x
  2. Step 2: Convert to fraction form
    9,275.12/12,792.68 = 6,442.49/x
  3. Step 3: Cross multiply
    9,275.12x = 12,792.68 × 6,442.49
  4. Step 4: Simplify right side
    9,275.12x = 82,416,761.06
  5. Step 5: Solve for x
    x = 82,416,761.06/9,275.12
  6. Step 6: Final answer
    x = 8,885.79

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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.