Home / 8,439.36-11,640.30-5,922.06

Finding the Fourth Proportional to 8,439.36, 11,640.30 and 5,922.06

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Solution

The fourth proportional to 8,439.36, 11,640.30 and 5,922.06 is: 8,168.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.36 : 11,640.30 = 5,922.06 : x
  2. Step 2: Convert to fraction form
    8,439.36/11,640.30 = 5,922.06/x
  3. Step 3: Cross multiply
    8,439.36x = 11,640.30 × 5,922.06
  4. Step 4: Simplify right side
    8,439.36x = 68,934,555.02
  5. Step 5: Solve for x
    x = 68,934,555.02/8,439.36
  6. Step 6: Final answer
    x = 8,168.22

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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.