Home / 13,081.26-18,052.36-7,112.96

Finding the Fourth Proportional to 13,081.26, 18,052.36 and 7,112.96

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Solution

The fourth proportional to 13,081.26, 18,052.36 and 7,112.96 is: 9,816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.26 : 18,052.36 = 7,112.96 : x
  2. Step 2: Convert to fraction form
    13,081.26/18,052.36 = 7,112.96/x
  3. Step 3: Cross multiply
    13,081.26x = 18,052.36 × 7,112.96
  4. Step 4: Simplify right side
    13,081.26x = 128,405,741.93
  5. Step 5: Solve for x
    x = 128,405,741.93/13,081.26
  6. Step 6: Final answer
    x = 9,816.01

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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.