Home / 11,190.96-15,437.52-6,939.36

Finding the Fourth Proportional to 11,190.96, 15,437.52 and 6,939.36

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Solution

The fourth proportional to 11,190.96, 15,437.52 and 6,939.36 is: 9,572.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.96 : 15,437.52 = 6,939.36 : x
  2. Step 2: Convert to fraction form
    11,190.96/15,437.52 = 6,939.36/x
  3. Step 3: Cross multiply
    11,190.96x = 15,437.52 × 6,939.36
  4. Step 4: Simplify right side
    11,190.96x = 107,126,508.79
  5. Step 5: Solve for x
    x = 107,126,508.79/11,190.96
  6. Step 6: Final answer
    x = 9,572.59

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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.