Home / 13,081.38-18,052.26-7,113.08

Finding the Fourth Proportional to 13,081.38, 18,052.26 and 7,113.08

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Solution

The fourth proportional to 13,081.38, 18,052.26 and 7,113.08 is: 9,816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.38 : 18,052.26 = 7,113.08 : x
  2. Step 2: Convert to fraction form
    13,081.38/18,052.26 = 7,113.08/x
  3. Step 3: Cross multiply
    13,081.38x = 18,052.26 × 7,113.08
  4. Step 4: Simplify right side
    13,081.38x = 128,407,169.56
  5. Step 5: Solve for x
    x = 128,407,169.56/13,081.38
  6. Step 6: Final answer
    x = 9,816.03

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Double scale
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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.