Home / 18,411.31-27,620.40-10,086.74

Finding the Fourth Proportional to 18,411.31, 27,620.40 and 10,086.74

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Solution

The fourth proportional to 18,411.31, 27,620.40 and 10,086.74 is: 15,131.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.31 : 27,620.40 = 10,086.74 : x
  2. Step 2: Convert to fraction form
    18,411.31/27,620.40 = 10,086.74/x
  3. Step 3: Cross multiply
    18,411.31x = 27,620.40 × 10,086.74
  4. Step 4: Simplify right side
    18,411.31x = 278,599,655.39
  5. Step 5: Solve for x
    x = 278,599,655.39/18,411.31
  6. Step 6: Final answer
    x = 15,131.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.