Home / 13,177.28-18,185.11-7,512.89

Finding the Fourth Proportional to 13,177.28, 18,185.11 and 7,512.89

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Solution

The fourth proportional to 13,177.28, 18,185.11 and 7,512.89 is: 10,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.28 : 18,185.11 = 7,512.89 : x
  2. Step 2: Convert to fraction form
    13,177.28/18,185.11 = 7,512.89/x
  3. Step 3: Cross multiply
    13,177.28x = 18,185.11 × 7,512.89
  4. Step 4: Simplify right side
    13,177.28x = 136,622,621.36
  5. Step 5: Solve for x
    x = 136,622,621.36/13,177.28
  6. Step 6: Final answer
    x = 10,368.04

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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.