Home / 8,427.62-12,639.51-2,272.10

Finding the Fourth Proportional to 8,427.62, 12,639.51 and 2,272.10

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Solution

The fourth proportional to 8,427.62, 12,639.51 and 2,272.10 is: 3,407.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.62 : 12,639.51 = 2,272.10 : x
  2. Step 2: Convert to fraction form
    8,427.62/12,639.51 = 2,272.10/x
  3. Step 3: Cross multiply
    8,427.62x = 12,639.51 × 2,272.10
  4. Step 4: Simplify right side
    8,427.62x = 28,718,230.67
  5. Step 5: Solve for x
    x = 28,718,230.67/8,427.62
  6. Step 6: Final answer
    x = 3,407.63

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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.