Home / 13,155.97-18,149.24-7,848.85

Finding the Fourth Proportional to 13,155.97, 18,149.24 and 7,848.85

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Solution

The fourth proportional to 13,155.97, 18,149.24 and 7,848.85 is: 10,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.97 : 18,149.24 = 7,848.85 : x
  2. Step 2: Convert to fraction form
    13,155.97/18,149.24 = 7,848.85/x
  3. Step 3: Cross multiply
    13,155.97x = 18,149.24 × 7,848.85
  4. Step 4: Simplify right side
    13,155.97x = 142,450,636.62
  5. Step 5: Solve for x
    x = 142,450,636.62/13,155.97
  6. Step 6: Final answer
    x = 10,827.83

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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.