Home / 18,198.36-25,113.78-10,240.68

Finding the Fourth Proportional to 18,198.36, 25,113.78 and 10,240.68

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Solution

The fourth proportional to 18,198.36, 25,113.78 and 10,240.68 is: 14,132.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.36 : 25,113.78 = 10,240.68 : x
  2. Step 2: Convert to fraction form
    18,198.36/25,113.78 = 10,240.68/x
  3. Step 3: Cross multiply
    18,198.36x = 25,113.78 × 10,240.68
  4. Step 4: Simplify right side
    18,198.36x = 257,182,184.57
  5. Step 5: Solve for x
    x = 257,182,184.57/18,198.36
  6. Step 6: Final answer
    x = 14,132.16

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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.