Home / 8,827.97-12,172.62-5,637.07

Finding the Fourth Proportional to 8,827.97, 12,172.62 and 5,637.07

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Solution

The fourth proportional to 8,827.97, 12,172.62 and 5,637.07 is: 7,772.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,827.97 : 12,172.62 = 5,637.07 : x
  2. Step 2: Convert to fraction form
    8,827.97/12,172.62 = 5,637.07/x
  3. Step 3: Cross multiply
    8,827.97x = 12,172.62 × 5,637.07
  4. Step 4: Simplify right side
    8,827.97x = 68,617,882.84
  5. Step 5: Solve for x
    x = 68,617,882.84/8,827.97
  6. Step 6: Final answer
    x = 7,772.78

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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.