Home / 12,519.01-18,775.32-5,122.09

Finding the Fourth Proportional to 12,519.01, 18,775.32 and 5,122.09

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Solution

The fourth proportional to 12,519.01, 18,775.32 and 5,122.09 is: 7,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.01 : 18,775.32 = 5,122.09 : x
  2. Step 2: Convert to fraction form
    12,519.01/18,775.32 = 5,122.09/x
  3. Step 3: Cross multiply
    12,519.01x = 18,775.32 × 5,122.09
  4. Step 4: Simplify right side
    12,519.01x = 96,168,878.82
  5. Step 5: Solve for x
    x = 96,168,878.82/12,519.01
  6. Step 6: Final answer
    x = 7,681.83

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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.