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Finding the Fourth Proportional to 8,334.90, 12,480.48 and 5,404.32

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Solution

The fourth proportional to 8,334.90, 12,480.48 and 5,404.32 is: 8,092.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,334.90 : 12,480.48 = 5,404.32 : x
  2. Step 2: Convert to fraction form
    8,334.90/12,480.48 = 5,404.32/x
  3. Step 3: Cross multiply
    8,334.90x = 12,480.48 × 5,404.32
  4. Step 4: Simplify right side
    8,334.90x = 67,448,507.67
  5. Step 5: Solve for x
    x = 67,448,507.67/8,334.90
  6. Step 6: Final answer
    x = 8,092.30

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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.