Home / 8,108.25-12,146.64-5,326.49

Finding the Fourth Proportional to 8,108.25, 12,146.64 and 5,326.49

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Solution

The fourth proportional to 8,108.25, 12,146.64 and 5,326.49 is: 7,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.25 : 12,146.64 = 5,326.49 : x
  2. Step 2: Convert to fraction form
    8,108.25/12,146.64 = 5,326.49/x
  3. Step 3: Cross multiply
    8,108.25x = 12,146.64 × 5,326.49
  4. Step 4: Simplify right side
    8,108.25x = 64,698,895.76
  5. Step 5: Solve for x
    x = 64,698,895.76/8,108.25
  6. Step 6: Final answer
    x = 7,979.39

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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.