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Finding the Fourth Proportional to 8,775.34, 13,163.10 and 2,931.94

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Solution

The fourth proportional to 8,775.34, 13,163.10 and 2,931.94 is: 4,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.34 : 13,163.10 = 2,931.94 : x
  2. Step 2: Convert to fraction form
    8,775.34/13,163.10 = 2,931.94/x
  3. Step 3: Cross multiply
    8,775.34x = 13,163.10 × 2,931.94
  4. Step 4: Simplify right side
    8,775.34x = 38,593,419.41
  5. Step 5: Solve for x
    x = 38,593,419.41/8,775.34
  6. Step 6: Final answer
    x = 4,397.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.