Home / 18,127.47-25,015.52-10,169.55

Finding the Fourth Proportional to 18,127.47, 25,015.52 and 10,169.55

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Solution

The fourth proportional to 18,127.47, 25,015.52 and 10,169.55 is: 14,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.47 : 25,015.52 = 10,169.55 : x
  2. Step 2: Convert to fraction form
    18,127.47/25,015.52 = 10,169.55/x
  3. Step 3: Cross multiply
    18,127.47x = 25,015.52 × 10,169.55
  4. Step 4: Simplify right side
    18,127.47x = 254,396,530.57
  5. Step 5: Solve for x
    x = 254,396,530.57/18,127.47
  6. Step 6: Final answer
    x = 14,033.76

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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.