Home / 8,771.70-12,107.16-5,633.36

Finding the Fourth Proportional to 8,771.70, 12,107.16 and 5,633.36

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Solution

The fourth proportional to 8,771.70, 12,107.16 and 5,633.36 is: 7,775.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.70 : 12,107.16 = 5,633.36 : x
  2. Step 2: Convert to fraction form
    8,771.70/12,107.16 = 5,633.36/x
  3. Step 3: Cross multiply
    8,771.70x = 12,107.16 × 5,633.36
  4. Step 4: Simplify right side
    8,771.70x = 68,203,990.86
  5. Step 5: Solve for x
    x = 68,203,990.86/8,771.70
  6. Step 6: Final answer
    x = 7,775.46

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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.