Home / 18,770.13-25,900.22-11,214.87

Finding the Fourth Proportional to 18,770.13, 25,900.22 and 11,214.87

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Solution

The fourth proportional to 18,770.13, 25,900.22 and 11,214.87 is: 15,474.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.13 : 25,900.22 = 11,214.87 : x
  2. Step 2: Convert to fraction form
    18,770.13/25,900.22 = 11,214.87/x
  3. Step 3: Cross multiply
    18,770.13x = 25,900.22 × 11,214.87
  4. Step 4: Simplify right side
    18,770.13x = 290,467,470.77
  5. Step 5: Solve for x
    x = 290,467,470.77/18,770.13
  6. Step 6: Final answer
    x = 15,474.98

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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.