Home / 19,918.17-29,876.31-6,770.79

Finding the Fourth Proportional to 19,918.17, 29,876.31 and 6,770.79

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Solution

The fourth proportional to 19,918.17, 29,876.31 and 6,770.79 is: 10,155.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.17 : 29,876.31 = 6,770.79 : x
  2. Step 2: Convert to fraction form
    19,918.17/29,876.31 = 6,770.79/x
  3. Step 3: Cross multiply
    19,918.17x = 29,876.31 × 6,770.79
  4. Step 4: Simplify right side
    19,918.17x = 202,286,220.98
  5. Step 5: Solve for x
    x = 202,286,220.98/19,918.17
  6. Step 6: Final answer
    x = 10,155.86

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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.