Home / 18,237.68-25,168.70-10,279.74

Finding the Fourth Proportional to 18,237.68, 25,168.70 and 10,279.74

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Solution

The fourth proportional to 18,237.68, 25,168.70 and 10,279.74 is: 14,186.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.68 : 25,168.70 = 10,279.74 : x
  2. Step 2: Convert to fraction form
    18,237.68/25,168.70 = 10,279.74/x
  3. Step 3: Cross multiply
    18,237.68x = 25,168.70 × 10,279.74
  4. Step 4: Simplify right side
    18,237.68x = 258,727,570.95
  5. Step 5: Solve for x
    x = 258,727,570.95/18,237.68
  6. Step 6: Final answer
    x = 14,186.43

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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.