Home / 8,172.65-12,251.58-2,977.31

Finding the Fourth Proportional to 8,172.65, 12,251.58 and 2,977.31

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Solution

The fourth proportional to 8,172.65, 12,251.58 and 2,977.31 is: 4,463.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.65 : 12,251.58 = 2,977.31 : x
  2. Step 2: Convert to fraction form
    8,172.65/12,251.58 = 2,977.31/x
  3. Step 3: Cross multiply
    8,172.65x = 12,251.58 × 2,977.31
  4. Step 4: Simplify right side
    8,172.65x = 36,476,690.39
  5. Step 5: Solve for x
    x = 36,476,690.39/8,172.65
  6. Step 6: Final answer
    x = 4,463.27

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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.