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Finding the Fourth Proportional to 6,250.80, 8,632.56 and 5,407.45

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Solution

The fourth proportional to 6,250.80, 8,632.56 and 5,407.45 is: 7,467.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,250.80 : 8,632.56 = 5,407.45 : x
  2. Step 2: Convert to fraction form
    6,250.80/8,632.56 = 5,407.45/x
  3. Step 3: Cross multiply
    6,250.80x = 8,632.56 × 5,407.45
  4. Step 4: Simplify right side
    6,250.80x = 46,680,136.57
  5. Step 5: Solve for x
    x = 46,680,136.57/6,250.80
  6. Step 6: Final answer
    x = 7,467.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.