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Finding the Fourth Proportional to 8,167.71, 11,269.93 and 4,811.07

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Solution

The fourth proportional to 8,167.71, 11,269.93 and 4,811.07 is: 6,638.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.71 : 11,269.93 = 4,811.07 : x
  2. Step 2: Convert to fraction form
    8,167.71/11,269.93 = 4,811.07/x
  3. Step 3: Cross multiply
    8,167.71x = 11,269.93 × 4,811.07
  4. Step 4: Simplify right side
    8,167.71x = 54,220,422.13
  5. Step 5: Solve for x
    x = 54,220,422.13/8,167.71
  6. Step 6: Final answer
    x = 6,638.39

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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.