Home / 13,013.73-17,961.66-8,230.59

Finding the Fourth Proportional to 13,013.73, 17,961.66 and 8,230.59

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Solution

The fourth proportional to 13,013.73, 17,961.66 and 8,230.59 is: 11,359.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.73 : 17,961.66 = 8,230.59 : x
  2. Step 2: Convert to fraction form
    13,013.73/17,961.66 = 8,230.59/x
  3. Step 3: Cross multiply
    13,013.73x = 17,961.66 × 8,230.59
  4. Step 4: Simplify right side
    13,013.73x = 147,835,059.18
  5. Step 5: Solve for x
    x = 147,835,059.18/13,013.73
  6. Step 6: Final answer
    x = 11,359.93

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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.