Home / 13,172.24-18,177.62-7,429.28

Finding the Fourth Proportional to 13,172.24, 18,177.62 and 7,429.28

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Solution

The fourth proportional to 13,172.24, 18,177.62 and 7,429.28 is: 10,252.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.24 : 18,177.62 = 7,429.28 : x
  2. Step 2: Convert to fraction form
    13,172.24/18,177.62 = 7,429.28/x
  3. Step 3: Cross multiply
    13,172.24x = 18,177.62 × 7,429.28
  4. Step 4: Simplify right side
    13,172.24x = 135,046,500.68
  5. Step 5: Solve for x
    x = 135,046,500.68/13,172.24
  6. Step 6: Final answer
    x = 10,252.35

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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.