Home / 15,282.89-21,091.40-8,568.96

Finding the Fourth Proportional to 15,282.89, 21,091.40 and 8,568.96

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Solution

The fourth proportional to 15,282.89, 21,091.40 and 8,568.96 is: 11,825.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.89 : 21,091.40 = 8,568.96 : x
  2. Step 2: Convert to fraction form
    15,282.89/21,091.40 = 8,568.96/x
  3. Step 3: Cross multiply
    15,282.89x = 21,091.40 × 8,568.96
  4. Step 4: Simplify right side
    15,282.89x = 180,731,321.34
  5. Step 5: Solve for x
    x = 180,731,321.34/15,282.89
  6. Step 6: Final answer
    x = 11,825.73

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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.