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Finding the Fourth Proportional to 8,750.81, 13,125.23 and 3,127.27

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Solution

The fourth proportional to 8,750.81, 13,125.23 and 3,127.27 is: 4,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.81 : 13,125.23 = 3,127.27 : x
  2. Step 2: Convert to fraction form
    8,750.81/13,125.23 = 3,127.27/x
  3. Step 3: Cross multiply
    8,750.81x = 13,125.23 × 3,127.27
  4. Step 4: Simplify right side
    8,750.81x = 41,046,138.02
  5. Step 5: Solve for x
    x = 41,046,138.02/8,750.81
  6. Step 6: Final answer
    x = 4,690.55

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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.