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Finding the Fourth Proportional to 7,243.03, 9,986.92 and 6,718.15

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Solution

The fourth proportional to 7,243.03, 9,986.92 and 6,718.15 is: 9,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,243.03 : 9,986.92 = 6,718.15 : x
  2. Step 2: Convert to fraction form
    7,243.03/9,986.92 = 6,718.15/x
  3. Step 3: Cross multiply
    7,243.03x = 9,986.92 × 6,718.15
  4. Step 4: Simplify right side
    7,243.03x = 67,093,626.60
  5. Step 5: Solve for x
    x = 67,093,626.60/7,243.03
  6. Step 6: Final answer
    x = 9,263.20

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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.