Home / 9,173.76-12,659.68-5,399.36

Finding the Fourth Proportional to 9,173.76, 12,659.68 and 5,399.36

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Solution

The fourth proportional to 9,173.76, 12,659.68 and 5,399.36 is: 7,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,173.76 : 12,659.68 = 5,399.36 : x
  2. Step 2: Convert to fraction form
    9,173.76/12,659.68 = 5,399.36/x
  3. Step 3: Cross multiply
    9,173.76x = 12,659.68 × 5,399.36
  4. Step 4: Simplify right side
    9,173.76x = 68,354,169.80
  5. Step 5: Solve for x
    x = 68,354,169.80/9,173.76
  6. Step 6: Final answer
    x = 7,451.05

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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.