Home / 13,177.44-18,182.88-7,512.45

Finding the Fourth Proportional to 13,177.44, 18,182.88 and 7,512.45

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Solution

The fourth proportional to 13,177.44, 18,182.88 and 7,512.45 is: 10,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.44 : 18,182.88 = 7,512.45 : x
  2. Step 2: Convert to fraction form
    13,177.44/18,182.88 = 7,512.45/x
  3. Step 3: Cross multiply
    13,177.44x = 18,182.88 × 7,512.45
  4. Step 4: Simplify right side
    13,177.44x = 136,597,976.86
  5. Step 5: Solve for x
    x = 136,597,976.86/13,177.44
  6. Step 6: Final answer
    x = 10,366.05

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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.