Home / 9,324.38-12,871.83-6,139.34

Finding the Fourth Proportional to 9,324.38, 12,871.83 and 6,139.34

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Solution

The fourth proportional to 9,324.38, 12,871.83 and 6,139.34 is: 8,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,324.38 : 12,871.83 = 6,139.34 : x
  2. Step 2: Convert to fraction form
    9,324.38/12,871.83 = 6,139.34/x
  3. Step 3: Cross multiply
    9,324.38x = 12,871.83 × 6,139.34
  4. Step 4: Simplify right side
    9,324.38x = 79,024,540.79
  5. Step 5: Solve for x
    x = 79,024,540.79/9,324.38
  6. Step 6: Final answer
    x = 8,475.05

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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.