Home / 8,587.70-12,877.95-2,742.74

Finding the Fourth Proportional to 8,587.70, 12,877.95 and 2,742.74

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Solution

The fourth proportional to 8,587.70, 12,877.95 and 2,742.74 is: 4,112.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.70 : 12,877.95 = 2,742.74 : x
  2. Step 2: Convert to fraction form
    8,587.70/12,877.95 = 2,742.74/x
  3. Step 3: Cross multiply
    8,587.70x = 12,877.95 × 2,742.74
  4. Step 4: Simplify right side
    8,587.70x = 35,320,868.58
  5. Step 5: Solve for x
    x = 35,320,868.58/8,587.70
  6. Step 6: Final answer
    x = 4,112.96

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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.