Home / 18,731.10-25,842.70-12,360.84

Finding the Fourth Proportional to 18,731.10, 25,842.70 and 12,360.84

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Solution

The fourth proportional to 18,731.10, 25,842.70 and 12,360.84 is: 17,053.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.10 : 25,842.70 = 12,360.84 : x
  2. Step 2: Convert to fraction form
    18,731.10/25,842.70 = 12,360.84/x
  3. Step 3: Cross multiply
    18,731.10x = 25,842.70 × 12,360.84
  4. Step 4: Simplify right side
    18,731.10x = 319,437,479.87
  5. Step 5: Solve for x
    x = 319,437,479.87/18,731.10
  6. Step 6: Final answer
    x = 17,053.86

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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.