Home / 12,278.36-18,425.10-9,764.66

Finding the Fourth Proportional to 12,278.36, 18,425.10 and 9,764.66

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Solution

The fourth proportional to 12,278.36, 18,425.10 and 9,764.66 is: 14,653.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.36 : 18,425.10 = 9,764.66 : x
  2. Step 2: Convert to fraction form
    12,278.36/18,425.10 = 9,764.66/x
  3. Step 3: Cross multiply
    12,278.36x = 18,425.10 × 9,764.66
  4. Step 4: Simplify right side
    12,278.36x = 179,914,836.97
  5. Step 5: Solve for x
    x = 179,914,836.97/12,278.36
  6. Step 6: Final answer
    x = 14,653.00

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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.