Home / 8,110.89-12,150.56-5,329.11

Finding the Fourth Proportional to 8,110.89, 12,150.56 and 5,329.11

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Solution

The fourth proportional to 8,110.89, 12,150.56 and 5,329.11 is: 7,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.89 : 12,150.56 = 5,329.11 : x
  2. Step 2: Convert to fraction form
    8,110.89/12,150.56 = 5,329.11/x
  3. Step 3: Cross multiply
    8,110.89x = 12,150.56 × 5,329.11
  4. Step 4: Simplify right side
    8,110.89x = 64,751,644.16
  5. Step 5: Solve for x
    x = 64,751,644.16/8,110.89
  6. Step 6: Final answer
    x = 7,983.30

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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.