Home / 11,249.62-15,529.02-6,777.20

Finding the Fourth Proportional to 11,249.62, 15,529.02 and 6,777.20

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Solution

The fourth proportional to 11,249.62, 15,529.02 and 6,777.20 is: 9,355.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.62 : 15,529.02 = 6,777.20 : x
  2. Step 2: Convert to fraction form
    11,249.62/15,529.02 = 6,777.20/x
  3. Step 3: Cross multiply
    11,249.62x = 15,529.02 × 6,777.20
  4. Step 4: Simplify right side
    11,249.62x = 105,243,287.75
  5. Step 5: Solve for x
    x = 105,243,287.75/11,249.62
  6. Step 6: Final answer
    x = 9,355.28

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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.