Home / 8,781.24-13,190.24-7,464.79

Finding the Fourth Proportional to 8,781.24, 13,190.24 and 7,464.79

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Solution

The fourth proportional to 8,781.24, 13,190.24 and 7,464.79 is: 11,212.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.24 : 13,190.24 = 7,464.79 : x
  2. Step 2: Convert to fraction form
    8,781.24/13,190.24 = 7,464.79/x
  3. Step 3: Cross multiply
    8,781.24x = 13,190.24 × 7,464.79
  4. Step 4: Simplify right side
    8,781.24x = 98,462,406.80
  5. Step 5: Solve for x
    x = 98,462,406.80/8,781.24
  6. Step 6: Final answer
    x = 11,212.81

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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.