Home / 9,183.18-12,672.45-4,991.34

Finding the Fourth Proportional to 9,183.18, 12,672.45 and 4,991.34

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Solution

The fourth proportional to 9,183.18, 12,672.45 and 4,991.34 is: 6,887.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,183.18 : 12,672.45 = 4,991.34 : x
  2. Step 2: Convert to fraction form
    9,183.18/12,672.45 = 4,991.34/x
  3. Step 3: Cross multiply
    9,183.18x = 12,672.45 × 4,991.34
  4. Step 4: Simplify right side
    9,183.18x = 63,252,506.58
  5. Step 5: Solve for x
    x = 63,252,506.58/9,183.18
  6. Step 6: Final answer
    x = 6,887.87

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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.