Home / 15,910.49-23,865.81-5,380.59

Finding the Fourth Proportional to 15,910.49, 23,865.81 and 5,380.59

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Solution

The fourth proportional to 15,910.49, 23,865.81 and 5,380.59 is: 8,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.49 : 23,865.81 = 5,380.59 : x
  2. Step 2: Convert to fraction form
    15,910.49/23,865.81 = 5,380.59/x
  3. Step 3: Cross multiply
    15,910.49x = 23,865.81 × 5,380.59
  4. Step 4: Simplify right side
    15,910.49x = 128,412,207.95
  5. Step 5: Solve for x
    x = 128,412,207.95/15,910.49
  6. Step 6: Final answer
    x = 8,070.91

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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.