Home / 8,399.36-12,600.12-7,816.16

Finding the Fourth Proportional to 8,399.36, 12,600.12 and 7,816.16

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Solution

The fourth proportional to 8,399.36, 12,600.12 and 7,816.16 is: 11,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.36 : 12,600.12 = 7,816.16 : x
  2. Step 2: Convert to fraction form
    8,399.36/12,600.12 = 7,816.16/x
  3. Step 3: Cross multiply
    8,399.36x = 12,600.12 × 7,816.16
  4. Step 4: Simplify right side
    8,399.36x = 98,484,553.94
  5. Step 5: Solve for x
    x = 98,484,553.94/8,399.36
  6. Step 6: Final answer
    x = 11,725.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.