Home / 13,102.33-18,079.18-7,512.25

Finding the Fourth Proportional to 13,102.33, 18,079.18 and 7,512.25

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Solution

The fourth proportional to 13,102.33, 18,079.18 and 7,512.25 is: 10,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.33 : 18,079.18 = 7,512.25 : x
  2. Step 2: Convert to fraction form
    13,102.33/18,079.18 = 7,512.25/x
  3. Step 3: Cross multiply
    13,102.33x = 18,079.18 × 7,512.25
  4. Step 4: Simplify right side
    13,102.33x = 135,815,319.96
  5. Step 5: Solve for x
    x = 135,815,319.96/13,102.33
  6. Step 6: Final answer
    x = 10,365.74

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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.