Home / 11,103.65-15,305.24-7,517.48

Finding the Fourth Proportional to 11,103.65, 15,305.24 and 7,517.48

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Solution

The fourth proportional to 11,103.65, 15,305.24 and 7,517.48 is: 10,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,103.65 : 15,305.24 = 7,517.48 : x
  2. Step 2: Convert to fraction form
    11,103.65/15,305.24 = 7,517.48/x
  3. Step 3: Cross multiply
    11,103.65x = 15,305.24 × 7,517.48
  4. Step 4: Simplify right side
    11,103.65x = 115,056,721.48
  5. Step 5: Solve for x
    x = 115,056,721.48/11,103.65
  6. Step 6: Final answer
    x = 10,362.07

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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.