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Finding the Fourth Proportional to 8,900.41, 12,282.07 and 4,921.29

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Solution

The fourth proportional to 8,900.41, 12,282.07 and 4,921.29 is: 6,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.41 : 12,282.07 = 4,921.29 : x
  2. Step 2: Convert to fraction form
    8,900.41/12,282.07 = 4,921.29/x
  3. Step 3: Cross multiply
    8,900.41x = 12,282.07 × 4,921.29
  4. Step 4: Simplify right side
    8,900.41x = 60,443,628.27
  5. Step 5: Solve for x
    x = 60,443,628.27/8,900.41
  6. Step 6: Final answer
    x = 6,791.11

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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.