Home / 19,338.78-26,672.31-12,963.18

Finding the Fourth Proportional to 19,338.78, 26,672.31 and 12,963.18

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Solution

The fourth proportional to 19,338.78, 26,672.31 and 12,963.18 is: 17,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.78 : 26,672.31 = 12,963.18 : x
  2. Step 2: Convert to fraction form
    19,338.78/26,672.31 = 12,963.18/x
  3. Step 3: Cross multiply
    19,338.78x = 26,672.31 × 12,963.18
  4. Step 4: Simplify right side
    19,338.78x = 345,757,955.55
  5. Step 5: Solve for x
    x = 345,757,955.55/19,338.78
  6. Step 6: Final answer
    x = 17,879.00

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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.