Home / 8,787.71-13,172.18-4,102.26

Finding the Fourth Proportional to 8,787.71, 13,172.18 and 4,102.26

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Solution

The fourth proportional to 8,787.71, 13,172.18 and 4,102.26 is: 6,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.71 : 13,172.18 = 4,102.26 : x
  2. Step 2: Convert to fraction form
    8,787.71/13,172.18 = 4,102.26/x
  3. Step 3: Cross multiply
    8,787.71x = 13,172.18 × 4,102.26
  4. Step 4: Simplify right side
    8,787.71x = 54,035,686.62
  5. Step 5: Solve for x
    x = 54,035,686.62/8,787.71
  6. Step 6: Final answer
    x = 6,149.01

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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.