Home / 11,134.22-15,357.84-7,160.36

Finding the Fourth Proportional to 11,134.22, 15,357.84 and 7,160.36

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Solution

The fourth proportional to 11,134.22, 15,357.84 and 7,160.36 is: 9,876.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.22 : 15,357.84 = 7,160.36 : x
  2. Step 2: Convert to fraction form
    11,134.22/15,357.84 = 7,160.36/x
  3. Step 3: Cross multiply
    11,134.22x = 15,357.84 × 7,160.36
  4. Step 4: Simplify right side
    11,134.22x = 109,967,663.22
  5. Step 5: Solve for x
    x = 109,967,663.22/11,134.22
  6. Step 6: Final answer
    x = 9,876.55

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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.