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Finding the Fourth Proportional to 8,787.83, 12,114.59 and 6,265.57

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Solution

The fourth proportional to 8,787.83, 12,114.59 and 6,265.57 is: 8,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.83 : 12,114.59 = 6,265.57 : x
  2. Step 2: Convert to fraction form
    8,787.83/12,114.59 = 6,265.57/x
  3. Step 3: Cross multiply
    8,787.83x = 12,114.59 × 6,265.57
  4. Step 4: Simplify right side
    8,787.83x = 75,904,751.09
  5. Step 5: Solve for x
    x = 75,904,751.09/8,787.83
  6. Step 6: Final answer
    x = 8,637.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.