Home / 8,660.24-11,951.64-5,122.64

Finding the Fourth Proportional to 8,660.24, 11,951.64 and 5,122.64

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Solution

The fourth proportional to 8,660.24, 11,951.64 and 5,122.64 is: 7,069.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660.24 : 11,951.64 = 5,122.64 : x
  2. Step 2: Convert to fraction form
    8,660.24/11,951.64 = 5,122.64/x
  3. Step 3: Cross multiply
    8,660.24x = 11,951.64 × 5,122.64
  4. Step 4: Simplify right side
    8,660.24x = 61,223,949.13
  5. Step 5: Solve for x
    x = 61,223,949.13/8,660.24
  6. Step 6: Final answer
    x = 7,069.54

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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.