Home / 8,077.72-12,123.06-4,183.24

Finding the Fourth Proportional to 8,077.72, 12,123.06 and 4,183.24

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Solution

The fourth proportional to 8,077.72, 12,123.06 and 4,183.24 is: 6,278.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.72 : 12,123.06 = 4,183.24 : x
  2. Step 2: Convert to fraction form
    8,077.72/12,123.06 = 4,183.24/x
  3. Step 3: Cross multiply
    8,077.72x = 12,123.06 × 4,183.24
  4. Step 4: Simplify right side
    8,077.72x = 50,713,669.51
  5. Step 5: Solve for x
    x = 50,713,669.51/8,077.72
  6. Step 6: Final answer
    x = 6,278.22

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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.