Home / 8,431.29-12,646.94-2,587.95

Finding the Fourth Proportional to 8,431.29, 12,646.94 and 2,587.95

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Solution

The fourth proportional to 8,431.29, 12,646.94 and 2,587.95 is: 3,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.29 : 12,646.94 = 2,587.95 : x
  2. Step 2: Convert to fraction form
    8,431.29/12,646.94 = 2,587.95/x
  3. Step 3: Cross multiply
    8,431.29x = 12,646.94 × 2,587.95
  4. Step 4: Simplify right side
    8,431.29x = 32,729,635.43
  5. Step 5: Solve for x
    x = 32,729,635.43/8,431.29
  6. Step 6: Final answer
    x = 3,881.93

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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.