Home / 12,516.62-18,782.60-5,019.38

Finding the Fourth Proportional to 12,516.62, 18,782.60 and 5,019.38

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Solution

The fourth proportional to 12,516.62, 18,782.60 and 5,019.38 is: 7,532.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.62 : 18,782.60 = 5,019.38 : x
  2. Step 2: Convert to fraction form
    12,516.62/18,782.60 = 5,019.38/x
  3. Step 3: Cross multiply
    12,516.62x = 18,782.60 × 5,019.38
  4. Step 4: Simplify right side
    12,516.62x = 94,277,028.65
  5. Step 5: Solve for x
    x = 94,277,028.65/12,516.62
  6. Step 6: Final answer
    x = 7,532.15

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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.