Home / 9,174.32-12,660.85-5,195.34

Finding the Fourth Proportional to 9,174.32, 12,660.85 and 5,195.34

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Solution

The fourth proportional to 9,174.32, 12,660.85 and 5,195.34 is: 7,169.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174.32 : 12,660.85 = 5,195.34 : x
  2. Step 2: Convert to fraction form
    9,174.32/12,660.85 = 5,195.34/x
  3. Step 3: Cross multiply
    9,174.32x = 12,660.85 × 5,195.34
  4. Step 4: Simplify right side
    9,174.32x = 65,777,477.15
  5. Step 5: Solve for x
    x = 65,777,477.15/9,174.32
  6. Step 6: Final answer
    x = 7,169.74

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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.