Home / 11,505.67-15,882.06-10,104.28

Finding the Fourth Proportional to 11,505.67, 15,882.06 and 10,104.28

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Solution

The fourth proportional to 11,505.67, 15,882.06 and 10,104.28 is: 13,947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505.67 : 15,882.06 = 10,104.28 : x
  2. Step 2: Convert to fraction form
    11,505.67/15,882.06 = 10,104.28/x
  3. Step 3: Cross multiply
    11,505.67x = 15,882.06 × 10,104.28
  4. Step 4: Simplify right side
    11,505.67x = 160,476,832.20
  5. Step 5: Solve for x
    x = 160,476,832.20/11,505.67
  6. Step 6: Final answer
    x = 13,947.63

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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.