Home / 8,009.16-12,011.88-2,815.02

Finding the Fourth Proportional to 8,009.16, 12,011.88 and 2,815.02

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Solution

The fourth proportional to 8,009.16, 12,011.88 and 2,815.02 is: 4,221.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.16 : 12,011.88 = 2,815.02 : x
  2. Step 2: Convert to fraction form
    8,009.16/12,011.88 = 2,815.02/x
  3. Step 3: Cross multiply
    8,009.16x = 12,011.88 × 2,815.02
  4. Step 4: Simplify right side
    8,009.16x = 33,813,682.44
  5. Step 5: Solve for x
    x = 33,813,682.44/8,009.16
  6. Step 6: Final answer
    x = 4,221.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.