Home / 8,759.28-13,131.95-5,057.31

Finding the Fourth Proportional to 8,759.28, 13,131.95 and 5,057.31

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Solution

The fourth proportional to 8,759.28, 13,131.95 and 5,057.31 is: 7,581.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.28 : 13,131.95 = 5,057.31 : x
  2. Step 2: Convert to fraction form
    8,759.28/13,131.95 = 5,057.31/x
  3. Step 3: Cross multiply
    8,759.28x = 13,131.95 × 5,057.31
  4. Step 4: Simplify right side
    8,759.28x = 66,412,316.77
  5. Step 5: Solve for x
    x = 66,412,316.77/8,759.28
  6. Step 6: Final answer
    x = 7,581.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.