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Finding the Fourth Proportional to 6,606.87, 9,900.75 and 6,407.19

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Solution

The fourth proportional to 6,606.87, 9,900.75 and 6,407.19 is: 9,601.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,606.87 : 9,900.75 = 6,407.19 : x
  2. Step 2: Convert to fraction form
    6,606.87/9,900.75 = 6,407.19/x
  3. Step 3: Cross multiply
    6,606.87x = 9,900.75 × 6,407.19
  4. Step 4: Simplify right side
    6,606.87x = 63,435,986.39
  5. Step 5: Solve for x
    x = 63,435,986.39/6,606.87
  6. Step 6: Final answer
    x = 9,601.52

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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.