Home / 8,787.15-13,180.73-2,213.39

Finding the Fourth Proportional to 8,787.15, 13,180.73 and 2,213.39

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Solution

The fourth proportional to 8,787.15, 13,180.73 and 2,213.39 is: 3,320.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.15 : 13,180.73 = 2,213.39 : x
  2. Step 2: Convert to fraction form
    8,787.15/13,180.73 = 2,213.39/x
  3. Step 3: Cross multiply
    8,787.15x = 13,180.73 × 2,213.39
  4. Step 4: Simplify right side
    8,787.15x = 29,174,095.97
  5. Step 5: Solve for x
    x = 29,174,095.97/8,787.15
  6. Step 6: Final answer
    x = 3,320.09

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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.