Home / 9,190.28-12,682.17-5,211.65

Finding the Fourth Proportional to 9,190.28, 12,682.17 and 5,211.65

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Solution

The fourth proportional to 9,190.28, 12,682.17 and 5,211.65 is: 7,191.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.28 : 12,682.17 = 5,211.65 : x
  2. Step 2: Convert to fraction form
    9,190.28/12,682.17 = 5,211.65/x
  3. Step 3: Cross multiply
    9,190.28x = 12,682.17 × 5,211.65
  4. Step 4: Simplify right side
    9,190.28x = 66,094,967.87
  5. Step 5: Solve for x
    x = 66,094,967.87/9,190.28
  6. Step 6: Final answer
    x = 7,191.84

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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.