Home / 19,912.64-27,478.14-11,959.25

Finding the Fourth Proportional to 19,912.64, 27,478.14 and 11,959.25

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Solution

The fourth proportional to 19,912.64, 27,478.14 and 11,959.25 is: 16,502.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.64 : 27,478.14 = 11,959.25 : x
  2. Step 2: Convert to fraction form
    19,912.64/27,478.14 = 11,959.25/x
  3. Step 3: Cross multiply
    19,912.64x = 27,478.14 × 11,959.25
  4. Step 4: Simplify right side
    19,912.64x = 328,617,763.56
  5. Step 5: Solve for x
    x = 328,617,763.56/19,912.64
  6. Step 6: Final answer
    x = 16,502.98

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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.