Home / 8,297.65-12,439.18-3,102.31

Finding the Fourth Proportional to 8,297.65, 12,439.18 and 3,102.31

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Solution

The fourth proportional to 8,297.65, 12,439.18 and 3,102.31 is: 4,650.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,297.65 : 12,439.18 = 3,102.31 : x
  2. Step 2: Convert to fraction form
    8,297.65/12,439.18 = 3,102.31/x
  3. Step 3: Cross multiply
    8,297.65x = 12,439.18 × 3,102.31
  4. Step 4: Simplify right side
    8,297.65x = 38,590,114.80
  5. Step 5: Solve for x
    x = 38,590,114.80/8,297.65
  6. Step 6: Final answer
    x = 4,650.73

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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.