Home / 13,512.22-18,646.92-7,543.54

Finding the Fourth Proportional to 13,512.22, 18,646.92 and 7,543.54

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Solution

The fourth proportional to 13,512.22, 18,646.92 and 7,543.54 is: 10,410.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.22 : 18,646.92 = 7,543.54 : x
  2. Step 2: Convert to fraction form
    13,512.22/18,646.92 = 7,543.54/x
  3. Step 3: Cross multiply
    13,512.22x = 18,646.92 × 7,543.54
  4. Step 4: Simplify right side
    13,512.22x = 140,663,786.90
  5. Step 5: Solve for x
    x = 140,663,786.90/13,512.22
  6. Step 6: Final answer
    x = 10,410.12

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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.