Home / 11,947.48-16,489.06-7,231.84

Finding the Fourth Proportional to 11,947.48, 16,489.06 and 7,231.84

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Solution

The fourth proportional to 11,947.48, 16,489.06 and 7,231.84 is: 9,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.48 : 16,489.06 = 7,231.84 : x
  2. Step 2: Convert to fraction form
    11,947.48/16,489.06 = 7,231.84/x
  3. Step 3: Cross multiply
    11,947.48x = 16,489.06 × 7,231.84
  4. Step 4: Simplify right side
    11,947.48x = 119,246,243.67
  5. Step 5: Solve for x
    x = 119,246,243.67/11,947.48
  6. Step 6: Final answer
    x = 9,980.87

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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.