Home / 12,516.34-18,772.12-3,751.25

Finding the Fourth Proportional to 12,516.34, 18,772.12 and 3,751.25

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Solution

The fourth proportional to 12,516.34, 18,772.12 and 3,751.25 is: 5,626.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.34 : 18,772.12 = 3,751.25 : x
  2. Step 2: Convert to fraction form
    12,516.34/18,772.12 = 3,751.25/x
  3. Step 3: Cross multiply
    12,516.34x = 18,772.12 × 3,751.25
  4. Step 4: Simplify right side
    12,516.34x = 70,418,910.47
  5. Step 5: Solve for x
    x = 70,418,910.47/12,516.34
  6. Step 6: Final answer
    x = 5,626.16

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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.