Home / 8,815.74-12,165.36-5,276.82

Finding the Fourth Proportional to 8,815.74, 12,165.36 and 5,276.82

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Solution

The fourth proportional to 8,815.74, 12,165.36 and 5,276.82 is: 7,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.74 : 12,165.36 = 5,276.82 : x
  2. Step 2: Convert to fraction form
    8,815.74/12,165.36 = 5,276.82/x
  3. Step 3: Cross multiply
    8,815.74x = 12,165.36 × 5,276.82
  4. Step 4: Simplify right side
    8,815.74x = 64,194,414.96
  5. Step 5: Solve for x
    x = 64,194,414.96/8,815.74
  6. Step 6: Final answer
    x = 7,281.80

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1.5x scale

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.