Home / 13,373.28-18,448.92-8,659.12

Finding the Fourth Proportional to 13,373.28, 18,448.92 and 8,659.12

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Solution

The fourth proportional to 13,373.28, 18,448.92 and 8,659.12 is: 11,945.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.28 : 18,448.92 = 8,659.12 : x
  2. Step 2: Convert to fraction form
    13,373.28/18,448.92 = 8,659.12/x
  3. Step 3: Cross multiply
    13,373.28x = 18,448.92 × 8,659.12
  4. Step 4: Simplify right side
    13,373.28x = 159,751,412.15
  5. Step 5: Solve for x
    x = 159,751,412.15/13,373.28
  6. Step 6: Final answer
    x = 11,945.57

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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.