Home / 9,119.20-13,659.36-5,645.92

Finding the Fourth Proportional to 9,119.20, 13,659.36 and 5,645.92

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Solution

The fourth proportional to 9,119.20, 13,659.36 and 5,645.92 is: 8,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.20 : 13,659.36 = 5,645.92 : x
  2. Step 2: Convert to fraction form
    9,119.20/13,659.36 = 5,645.92/x
  3. Step 3: Cross multiply
    9,119.20x = 13,659.36 × 5,645.92
  4. Step 4: Simplify right side
    9,119.20x = 77,119,653.81
  5. Step 5: Solve for x
    x = 77,119,653.81/9,119.20
  6. Step 6: Final answer
    x = 8,456.84

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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.