Home / 6,896.20-9,520.98-4,247.20

Finding the Fourth Proportional to 6,896.20, 9,520.98 and 4,247.20

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Solution

The fourth proportional to 6,896.20, 9,520.98 and 4,247.20 is: 5,863.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,896.20 : 9,520.98 = 4,247.20 : x
  2. Step 2: Convert to fraction form
    6,896.20/9,520.98 = 4,247.20/x
  3. Step 3: Cross multiply
    6,896.20x = 9,520.98 × 4,247.20
  4. Step 4: Simplify right side
    6,896.20x = 40,437,506.26
  5. Step 5: Solve for x
    x = 40,437,506.26/6,896.20
  6. Step 6: Final answer
    x = 5,863.74

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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.