Home / 8,815.98-12,166.44-5,278.52

Finding the Fourth Proportional to 8,815.98, 12,166.44 and 5,278.52

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Solution

The fourth proportional to 8,815.98, 12,166.44 and 5,278.52 is: 7,284.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.98 : 12,166.44 = 5,278.52 : x
  2. Step 2: Convert to fraction form
    8,815.98/12,166.44 = 5,278.52/x
  3. Step 3: Cross multiply
    8,815.98x = 12,166.44 × 5,278.52
  4. Step 4: Simplify right side
    8,815.98x = 64,220,746.66
  5. Step 5: Solve for x
    x = 64,220,746.66/8,815.98
  6. Step 6: Final answer
    x = 7,284.58

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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.