Home / 9,173.72-12,660.18-5,195

Finding the Fourth Proportional to 9,173.72, 12,660.18 and 5,195

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Solution

The fourth proportional to 9,173.72, 12,660.18 and 5,195 is: 7,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,173.72 : 12,660.18 = 5,195 : x
  2. Step 2: Convert to fraction form
    9,173.72/12,660.18 = 5,195/x
  3. Step 3: Cross multiply
    9,173.72x = 12,660.18 × 5,195
  4. Step 4: Simplify right side
    9,173.72x = 65,769,635.10
  5. Step 5: Solve for x
    x = 65,769,635.10/9,173.72
  6. Step 6: Final answer
    x = 7,169.35

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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.