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Finding the Fourth Proportional to 8,011.71, 12,017.61 and 3,080.16

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Solution

The fourth proportional to 8,011.71, 12,017.61 and 3,080.16 is: 4,620.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.71 : 12,017.61 = 3,080.16 : x
  2. Step 2: Convert to fraction form
    8,011.71/12,017.61 = 3,080.16/x
  3. Step 3: Cross multiply
    8,011.71x = 12,017.61 × 3,080.16
  4. Step 4: Simplify right side
    8,011.71x = 37,016,161.62
  5. Step 5: Solve for x
    x = 37,016,161.62/8,011.71
  6. Step 6: Final answer
    x = 4,620.26

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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.