Home / 8,778.56-13,143.36-5,999.36

Finding the Fourth Proportional to 8,778.56, 13,143.36 and 5,999.36

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Solution

The fourth proportional to 8,778.56, 13,143.36 and 5,999.36 is: 8,982.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.56 : 13,143.36 = 5,999.36 : x
  2. Step 2: Convert to fraction form
    8,778.56/13,143.36 = 5,999.36/x
  3. Step 3: Cross multiply
    8,778.56x = 13,143.36 × 5,999.36
  4. Step 4: Simplify right side
    8,778.56x = 78,851,748.25
  5. Step 5: Solve for x
    x = 78,851,748.25/8,778.56
  6. Step 6: Final answer
    x = 8,982.31

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1.5x scale

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.