Home / 12,511.51-18,764.07-5,114.59

Finding the Fourth Proportional to 12,511.51, 18,764.07 and 5,114.59

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Solution

The fourth proportional to 12,511.51, 18,764.07 and 5,114.59 is: 7,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.51 : 18,764.07 = 5,114.59 : x
  2. Step 2: Convert to fraction form
    12,511.51/18,764.07 = 5,114.59/x
  3. Step 3: Cross multiply
    12,511.51x = 18,764.07 × 5,114.59
  4. Step 4: Simplify right side
    12,511.51x = 95,970,524.78
  5. Step 5: Solve for x
    x = 95,970,524.78/12,511.51
  6. Step 6: Final answer
    x = 7,670.58

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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.