Home / 8,992.22-12,410.87-5,637.90

Finding the Fourth Proportional to 8,992.22, 12,410.87 and 5,637.90

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Solution

The fourth proportional to 8,992.22, 12,410.87 and 5,637.90 is: 7,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.22 : 12,410.87 = 5,637.90 : x
  2. Step 2: Convert to fraction form
    8,992.22/12,410.87 = 5,637.90/x
  3. Step 3: Cross multiply
    8,992.22x = 12,410.87 × 5,637.90
  4. Step 4: Simplify right side
    8,992.22x = 69,971,215.78
  5. Step 5: Solve for x
    x = 69,971,215.78/8,992.22
  6. Step 6: Final answer
    x = 7,781.31

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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.