Home / 8,817.54-12,166.92-5,280

Finding the Fourth Proportional to 8,817.54, 12,166.92 and 5,280

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Solution

The fourth proportional to 8,817.54, 12,166.92 and 5,280 is: 7,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.54 : 12,166.92 = 5,280 : x
  2. Step 2: Convert to fraction form
    8,817.54/12,166.92 = 5,280/x
  3. Step 3: Cross multiply
    8,817.54x = 12,166.92 × 5,280
  4. Step 4: Simplify right side
    8,817.54x = 64,241,337.60
  5. Step 5: Solve for x
    x = 64,241,337.60/8,817.54
  6. Step 6: Final answer
    x = 7,285.63

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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.