Home / 9,190.41-12,682.63-5,211.74

Finding the Fourth Proportional to 9,190.41, 12,682.63 and 5,211.74

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Solution

The fourth proportional to 9,190.41, 12,682.63 and 5,211.74 is: 7,192.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.41 : 12,682.63 = 5,211.74 : x
  2. Step 2: Convert to fraction form
    9,190.41/12,682.63 = 5,211.74/x
  3. Step 3: Cross multiply
    9,190.41x = 12,682.63 × 5,211.74
  4. Step 4: Simplify right side
    9,190.41x = 66,098,578.98
  5. Step 5: Solve for x
    x = 66,098,578.98/9,190.41
  6. Step 6: Final answer
    x = 7,192.12

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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.