Home / 8,712.14-13,064.24-2,787.90

Finding the Fourth Proportional to 8,712.14, 13,064.24 and 2,787.90

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Solution

The fourth proportional to 8,712.14, 13,064.24 and 2,787.90 is: 4,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.14 : 13,064.24 = 2,787.90 : x
  2. Step 2: Convert to fraction form
    8,712.14/13,064.24 = 2,787.90/x
  3. Step 3: Cross multiply
    8,712.14x = 13,064.24 × 2,787.90
  4. Step 4: Simplify right side
    8,712.14x = 36,421,780.76
  5. Step 5: Solve for x
    x = 36,421,780.76/8,712.14
  6. Step 6: Final answer
    x = 4,180.58

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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.