Home / 9,977.92-13,770.45-5,729.54

Finding the Fourth Proportional to 9,977.92, 13,770.45 and 5,729.54

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Solution

The fourth proportional to 9,977.92, 13,770.45 and 5,729.54 is: 7,907.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,977.92 : 13,770.45 = 5,729.54 : x
  2. Step 2: Convert to fraction form
    9,977.92/13,770.45 = 5,729.54/x
  3. Step 3: Cross multiply
    9,977.92x = 13,770.45 × 5,729.54
  4. Step 4: Simplify right side
    9,977.92x = 78,898,275.24
  5. Step 5: Solve for x
    x = 78,898,275.24/9,977.92
  6. Step 6: Final answer
    x = 7,907.29

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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.