Home / 9,770.20-13,481.98-5,790.66

Finding the Fourth Proportional to 9,770.20, 13,481.98 and 5,790.66

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Solution

The fourth proportional to 9,770.20, 13,481.98 and 5,790.66 is: 7,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,770.20 : 13,481.98 = 5,790.66 : x
  2. Step 2: Convert to fraction form
    9,770.20/13,481.98 = 5,790.66/x
  3. Step 3: Cross multiply
    9,770.20x = 13,481.98 × 5,790.66
  4. Step 4: Simplify right side
    9,770.20x = 78,069,562.31
  5. Step 5: Solve for x
    x = 78,069,562.31/9,770.20
  6. Step 6: Final answer
    x = 7,990.58

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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.