Home / 11,681.52-16,120.34-6,376.42

Finding the Fourth Proportional to 11,681.52, 16,120.34 and 6,376.42

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Solution

The fourth proportional to 11,681.52, 16,120.34 and 6,376.42 is: 8,799.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.52 : 16,120.34 = 6,376.42 : x
  2. Step 2: Convert to fraction form
    11,681.52/16,120.34 = 6,376.42/x
  3. Step 3: Cross multiply
    11,681.52x = 16,120.34 × 6,376.42
  4. Step 4: Simplify right side
    11,681.52x = 102,790,058.38
  5. Step 5: Solve for x
    x = 102,790,058.38/11,681.52
  6. Step 6: Final answer
    x = 8,799.37

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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.