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Finding the Fourth Proportional to 6,968.40, 10,436.40 and 6,806.40

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Solution

The fourth proportional to 6,968.40, 10,436.40 and 6,806.40 is: 10,193.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,968.40 : 10,436.40 = 6,806.40 : x
  2. Step 2: Convert to fraction form
    6,968.40/10,436.40 = 6,806.40/x
  3. Step 3: Cross multiply
    6,968.40x = 10,436.40 × 6,806.40
  4. Step 4: Simplify right side
    6,968.40x = 71,034,312.96
  5. Step 5: Solve for x
    x = 71,034,312.96/6,968.40
  6. Step 6: Final answer
    x = 10,193.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.