Home / 13,101.52-18,079.68-7,795.12

Finding the Fourth Proportional to 13,101.52, 18,079.68 and 7,795.12

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Solution

The fourth proportional to 13,101.52, 18,079.68 and 7,795.12 is: 10,757.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,101.52 : 18,079.68 = 7,795.12 : x
  2. Step 2: Convert to fraction form
    13,101.52/18,079.68 = 7,795.12/x
  3. Step 3: Cross multiply
    13,101.52x = 18,079.68 × 7,795.12
  4. Step 4: Simplify right side
    13,101.52x = 140,933,275.16
  5. Step 5: Solve for x
    x = 140,933,275.16/13,101.52
  6. Step 6: Final answer
    x = 10,757.02

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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.