Home / 19,766.74-27,279.31-11,385.94

Finding the Fourth Proportional to 19,766.74, 27,279.31 and 11,385.94

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Solution

The fourth proportional to 19,766.74, 27,279.31 and 11,385.94 is: 15,713.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,766.74 : 27,279.31 = 11,385.94 : x
  2. Step 2: Convert to fraction form
    19,766.74/27,279.31 = 11,385.94/x
  3. Step 3: Cross multiply
    19,766.74x = 27,279.31 × 11,385.94
  4. Step 4: Simplify right side
    19,766.74x = 310,600,586.90
  5. Step 5: Solve for x
    x = 310,600,586.90/19,766.74
  6. Step 6: Final answer
    x = 15,713.29

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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.