Home / 12,510.42-18,765.64-3,150.44

Finding the Fourth Proportional to 12,510.42, 18,765.64 and 3,150.44

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Solution

The fourth proportional to 12,510.42, 18,765.64 and 3,150.44 is: 4,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.42 : 18,765.64 = 3,150.44 : x
  2. Step 2: Convert to fraction form
    12,510.42/18,765.64 = 3,150.44/x
  3. Step 3: Cross multiply
    12,510.42x = 18,765.64 × 3,150.44
  4. Step 4: Simplify right side
    12,510.42x = 59,120,022.88
  5. Step 5: Solve for x
    x = 59,120,022.88/12,510.42
  6. Step 6: Final answer
    x = 4,725.66

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Similar ratio
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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.