Home / 8,635.29-12,954.15-3,087.47

Finding the Fourth Proportional to 8,635.29, 12,954.15 and 3,087.47

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Solution

The fourth proportional to 8,635.29, 12,954.15 and 3,087.47 is: 4,631.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.29 : 12,954.15 = 3,087.47 : x
  2. Step 2: Convert to fraction form
    8,635.29/12,954.15 = 3,087.47/x
  3. Step 3: Cross multiply
    8,635.29x = 12,954.15 × 3,087.47
  4. Step 4: Simplify right side
    8,635.29x = 39,995,484.73
  5. Step 5: Solve for x
    x = 39,995,484.73/8,635.29
  6. Step 6: Final answer
    x = 4,631.63

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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.