Home / 8,051.28-11,108.52-5,398.80

Finding the Fourth Proportional to 8,051.28, 11,108.52 and 5,398.80

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Solution

The fourth proportional to 8,051.28, 11,108.52 and 5,398.80 is: 7,448.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.28 : 11,108.52 = 5,398.80 : x
  2. Step 2: Convert to fraction form
    8,051.28/11,108.52 = 5,398.80/x
  3. Step 3: Cross multiply
    8,051.28x = 11,108.52 × 5,398.80
  4. Step 4: Simplify right side
    8,051.28x = 59,972,677.78
  5. Step 5: Solve for x
    x = 59,972,677.78/8,051.28
  6. Step 6: Final answer
    x = 7,448.84

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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.