Home / 11,181.24-15,436.88-7,407.65

Finding the Fourth Proportional to 11,181.24, 15,436.88 and 7,407.65

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Solution

The fourth proportional to 11,181.24, 15,436.88 and 7,407.65 is: 10,227.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.24 : 15,436.88 = 7,407.65 : x
  2. Step 2: Convert to fraction form
    11,181.24/15,436.88 = 7,407.65/x
  3. Step 3: Cross multiply
    11,181.24x = 15,436.88 × 7,407.65
  4. Step 4: Simplify right side
    11,181.24x = 114,350,889.91
  5. Step 5: Solve for x
    x = 114,350,889.91/11,181.24
  6. Step 6: Final answer
    x = 10,227.03

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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.