Home / 8,241.36-11,391.78-7,587.45

Finding the Fourth Proportional to 8,241.36, 11,391.78 and 7,587.45

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Solution

The fourth proportional to 8,241.36, 11,391.78 and 7,587.45 is: 10,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.36 : 11,391.78 = 7,587.45 : x
  2. Step 2: Convert to fraction form
    8,241.36/11,391.78 = 7,587.45/x
  3. Step 3: Cross multiply
    8,241.36x = 11,391.78 × 7,587.45
  4. Step 4: Simplify right side
    8,241.36x = 86,434,561.16
  5. Step 5: Solve for x
    x = 86,434,561.16/8,241.36
  6. Step 6: Final answer
    x = 10,487.90

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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.