Home / 11,129.70-15,357.92-6,652.56

Finding the Fourth Proportional to 11,129.70, 15,357.92 and 6,652.56

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Solution

The fourth proportional to 11,129.70, 15,357.92 and 6,652.56 is: 9,179.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.70 : 15,357.92 = 6,652.56 : x
  2. Step 2: Convert to fraction form
    11,129.70/15,357.92 = 6,652.56/x
  3. Step 3: Cross multiply
    11,129.70x = 15,357.92 × 6,652.56
  4. Step 4: Simplify right side
    11,129.70x = 102,169,484.28
  5. Step 5: Solve for x
    x = 102,169,484.28/11,129.70
  6. Step 6: Final answer
    x = 9,179.90

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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.