Home / 8,399.25-11,588.56-5,416.79

Finding the Fourth Proportional to 8,399.25, 11,588.56 and 5,416.79

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Solution

The fourth proportional to 8,399.25, 11,588.56 and 5,416.79 is: 7,473.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.25 : 11,588.56 = 5,416.79 : x
  2. Step 2: Convert to fraction form
    8,399.25/11,588.56 = 5,416.79/x
  3. Step 3: Cross multiply
    8,399.25x = 11,588.56 × 5,416.79
  4. Step 4: Simplify right side
    8,399.25x = 62,772,768.84
  5. Step 5: Solve for x
    x = 62,772,768.84/8,399.25
  6. Step 6: Final answer
    x = 7,473.62

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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.