Home / 8,326.60-11,485.56-5,494.12

Finding the Fourth Proportional to 8,326.60, 11,485.56 and 5,494.12

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Solution

The fourth proportional to 8,326.60, 11,485.56 and 5,494.12 is: 7,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.60 : 11,485.56 = 5,494.12 : x
  2. Step 2: Convert to fraction form
    8,326.60/11,485.56 = 5,494.12/x
  3. Step 3: Cross multiply
    8,326.60x = 11,485.56 × 5,494.12
  4. Step 4: Simplify right side
    8,326.60x = 63,103,044.91
  5. Step 5: Solve for x
    x = 63,103,044.91/8,326.60
  6. Step 6: Final answer
    x = 7,578.49

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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.