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Finding the Fourth Proportional to 8,851.16, 12,212.64 and 5,123

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Solution

The fourth proportional to 8,851.16, 12,212.64 and 5,123 is: 7,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.16 : 12,212.64 = 5,123 : x
  2. Step 2: Convert to fraction form
    8,851.16/12,212.64 = 5,123/x
  3. Step 3: Cross multiply
    8,851.16x = 12,212.64 × 5,123
  4. Step 4: Simplify right side
    8,851.16x = 62,565,354.72
  5. Step 5: Solve for x
    x = 62,565,354.72/8,851.16
  6. Step 6: Final answer
    x = 7,068.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.