Home / 12,278.63-16,926.59-9,761.75

Finding the Fourth Proportional to 12,278.63, 16,926.59 and 9,761.75

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Solution

The fourth proportional to 12,278.63, 16,926.59 and 9,761.75 is: 13,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.63 : 16,926.59 = 9,761.75 : x
  2. Step 2: Convert to fraction form
    12,278.63/16,926.59 = 9,761.75/x
  3. Step 3: Cross multiply
    12,278.63x = 16,926.59 × 9,761.75
  4. Step 4: Simplify right side
    12,278.63x = 165,233,139.93
  5. Step 5: Solve for x
    x = 165,233,139.93/12,278.63
  6. Step 6: Final answer
    x = 13,456.97

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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.