Home / 9,190.67-12,682.04-5,211.68

Finding the Fourth Proportional to 9,190.67, 12,682.04 and 5,211.68

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Solution

The fourth proportional to 9,190.67, 12,682.04 and 5,211.68 is: 7,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.67 : 12,682.04 = 5,211.68 : x
  2. Step 2: Convert to fraction form
    9,190.67/12,682.04 = 5,211.68/x
  3. Step 3: Cross multiply
    9,190.67x = 12,682.04 × 5,211.68
  4. Step 4: Simplify right side
    9,190.67x = 66,094,644.76
  5. Step 5: Solve for x
    x = 66,094,644.76/9,190.67
  6. Step 6: Final answer
    x = 7,191.50

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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.