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Finding the Fourth Proportional to 8,851.53, 12,214.64 and 4,871.88

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Solution

The fourth proportional to 8,851.53, 12,214.64 and 4,871.88 is: 6,722.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.53 : 12,214.64 = 4,871.88 : x
  2. Step 2: Convert to fraction form
    8,851.53/12,214.64 = 4,871.88/x
  3. Step 3: Cross multiply
    8,851.53x = 12,214.64 × 4,871.88
  4. Step 4: Simplify right side
    8,851.53x = 59,508,235.96
  5. Step 5: Solve for x
    x = 59,508,235.96/8,851.53
  6. Step 6: Final answer
    x = 6,722.93

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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.