Home / 17,770.79-26,655.10-5,290.85

Finding the Fourth Proportional to 17,770.79, 26,655.10 and 5,290.85

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Solution

The fourth proportional to 17,770.79, 26,655.10 and 5,290.85 is: 7,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,770.79 : 26,655.10 = 5,290.85 : x
  2. Step 2: Convert to fraction form
    17,770.79/26,655.10 = 5,290.85/x
  3. Step 3: Cross multiply
    17,770.79x = 26,655.10 × 5,290.85
  4. Step 4: Simplify right side
    17,770.79x = 141,027,976.11
  5. Step 5: Solve for x
    x = 141,027,976.11/17,770.79
  6. Step 6: Final answer
    x = 7,935.95

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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.