Home / 19,555.73-26,979.83-12,844.98

Finding the Fourth Proportional to 19,555.73, 26,979.83 and 12,844.98

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Solution

The fourth proportional to 19,555.73, 26,979.83 and 12,844.98 is: 17,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.73 : 26,979.83 = 12,844.98 : x
  2. Step 2: Convert to fraction form
    19,555.73/26,979.83 = 12,844.98/x
  3. Step 3: Cross multiply
    19,555.73x = 26,979.83 × 12,844.98
  4. Step 4: Simplify right side
    19,555.73x = 346,555,432.95
  5. Step 5: Solve for x
    x = 346,555,432.95/19,555.73
  6. Step 6: Final answer
    x = 17,721.43

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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.