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Finding the Fourth Proportional to 6,806.72, 10,131.39 and 6,653.63

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Solution

The fourth proportional to 6,806.72, 10,131.39 and 6,653.63 is: 9,903.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,806.72 : 10,131.39 = 6,653.63 : x
  2. Step 2: Convert to fraction form
    6,806.72/10,131.39 = 6,653.63/x
  3. Step 3: Cross multiply
    6,806.72x = 10,131.39 × 6,653.63
  4. Step 4: Simplify right side
    6,806.72x = 67,410,545.77
  5. Step 5: Solve for x
    x = 67,410,545.77/6,806.72
  6. Step 6: Final answer
    x = 9,903.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.