Home / 8,967.15-12,374.44-5,189.79

Finding the Fourth Proportional to 8,967.15, 12,374.44 and 5,189.79

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Solution

The fourth proportional to 8,967.15, 12,374.44 and 5,189.79 is: 7,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,967.15 : 12,374.44 = 5,189.79 : x
  2. Step 2: Convert to fraction form
    8,967.15/12,374.44 = 5,189.79/x
  3. Step 3: Cross multiply
    8,967.15x = 12,374.44 × 5,189.79
  4. Step 4: Simplify right side
    8,967.15x = 64,220,744.97
  5. Step 5: Solve for x
    x = 64,220,744.97/8,967.15
  6. Step 6: Final answer
    x = 7,161.78

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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.