Home / 8,168.96-11,270.40-5,377.28

Finding the Fourth Proportional to 8,168.96, 11,270.40 and 5,377.28

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Solution

The fourth proportional to 8,168.96, 11,270.40 and 5,377.28 is: 7,418.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.96 : 11,270.40 = 5,377.28 : x
  2. Step 2: Convert to fraction form
    8,168.96/11,270.40 = 5,377.28/x
  3. Step 3: Cross multiply
    8,168.96x = 11,270.40 × 5,377.28
  4. Step 4: Simplify right side
    8,168.96x = 60,604,096.51
  5. Step 5: Solve for x
    x = 60,604,096.51/8,168.96
  6. Step 6: Final answer
    x = 7,418.83

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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.