Home / 18,198.65-25,113.98-10,240.72

Finding the Fourth Proportional to 18,198.65, 25,113.98 and 10,240.72

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Solution

The fourth proportional to 18,198.65, 25,113.98 and 10,240.72 is: 14,132.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.65 : 25,113.98 = 10,240.72 : x
  2. Step 2: Convert to fraction form
    18,198.65/25,113.98 = 10,240.72/x
  3. Step 3: Cross multiply
    18,198.65x = 25,113.98 × 10,240.72
  4. Step 4: Simplify right side
    18,198.65x = 257,185,060.49
  5. Step 5: Solve for x
    x = 257,185,060.49/18,198.65
  6. Step 6: Final answer
    x = 14,132.10

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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.