Home / 8,071.52-12,107.07-3,326.63

Finding the Fourth Proportional to 8,071.52, 12,107.07 and 3,326.63

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Solution

The fourth proportional to 8,071.52, 12,107.07 and 3,326.63 is: 4,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.52 : 12,107.07 = 3,326.63 : x
  2. Step 2: Convert to fraction form
    8,071.52/12,107.07 = 3,326.63/x
  3. Step 3: Cross multiply
    8,071.52x = 12,107.07 × 3,326.63
  4. Step 4: Simplify right side
    8,071.52x = 40,275,681.74
  5. Step 5: Solve for x
    x = 40,275,681.74/8,071.52
  6. Step 6: Final answer
    x = 4,989.85

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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.