Home / 18,143.55-25,034.94-10,186.11

Finding the Fourth Proportional to 18,143.55, 25,034.94 and 10,186.11

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Solution

The fourth proportional to 18,143.55, 25,034.94 and 10,186.11 is: 14,055.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.55 : 25,034.94 = 10,186.11 : x
  2. Step 2: Convert to fraction form
    18,143.55/25,034.94 = 10,186.11/x
  3. Step 3: Cross multiply
    18,143.55x = 25,034.94 × 10,186.11
  4. Step 4: Simplify right side
    18,143.55x = 255,008,652.68
  5. Step 5: Solve for x
    x = 255,008,652.68/18,143.55
  6. Step 6: Final answer
    x = 14,055.06

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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.