Home / 11,306.48-15,584.96-8,912.57

Finding the Fourth Proportional to 11,306.48, 15,584.96 and 8,912.57

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Solution

The fourth proportional to 11,306.48, 15,584.96 and 8,912.57 is: 12,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,306.48 : 15,584.96 = 8,912.57 : x
  2. Step 2: Convert to fraction form
    11,306.48/15,584.96 = 8,912.57/x
  3. Step 3: Cross multiply
    11,306.48x = 15,584.96 × 8,912.57
  4. Step 4: Simplify right side
    11,306.48x = 138,901,924.46
  5. Step 5: Solve for x
    x = 138,901,924.46/11,306.48
  6. Step 6: Final answer
    x = 12,285.17

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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.