Home / 8,637.28-12,940.21-5,999.21

Finding the Fourth Proportional to 8,637.28, 12,940.21 and 5,999.21

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Solution

The fourth proportional to 8,637.28, 12,940.21 and 5,999.21 is: 8,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.28 : 12,940.21 = 5,999.21 : x
  2. Step 2: Convert to fraction form
    8,637.28/12,940.21 = 5,999.21/x
  3. Step 3: Cross multiply
    8,637.28x = 12,940.21 × 5,999.21
  4. Step 4: Simplify right side
    8,637.28x = 77,631,067.60
  5. Step 5: Solve for x
    x = 77,631,067.60/8,637.28
  6. Step 6: Final answer
    x = 8,987.90

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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.