Home / 13,015.12-17,960.70-7,046.65

Finding the Fourth Proportional to 13,015.12, 17,960.70 and 7,046.65

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Solution

The fourth proportional to 13,015.12, 17,960.70 and 7,046.65 is: 9,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.12 : 17,960.70 = 7,046.65 : x
  2. Step 2: Convert to fraction form
    13,015.12/17,960.70 = 7,046.65/x
  3. Step 3: Cross multiply
    13,015.12x = 17,960.70 × 7,046.65
  4. Step 4: Simplify right side
    13,015.12x = 126,562,766.66
  5. Step 5: Solve for x
    x = 126,562,766.66/13,015.12
  6. Step 6: Final answer
    x = 9,724.29

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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.