Home / 8,789.28-12,119.99-5,801.19

Finding the Fourth Proportional to 8,789.28, 12,119.99 and 5,801.19

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Solution

The fourth proportional to 8,789.28, 12,119.99 and 5,801.19 is: 7,999.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.28 : 12,119.99 = 5,801.19 : x
  2. Step 2: Convert to fraction form
    8,789.28/12,119.99 = 5,801.19/x
  3. Step 3: Cross multiply
    8,789.28x = 12,119.99 × 5,801.19
  4. Step 4: Simplify right side
    8,789.28x = 70,310,364.79
  5. Step 5: Solve for x
    x = 70,310,364.79/8,789.28
  6. Step 6: Final answer
    x = 7,999.56

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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.