Home / 12,408.58-18,613.47-5,012.11

Finding the Fourth Proportional to 12,408.58, 18,613.47 and 5,012.11

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Solution

The fourth proportional to 12,408.58, 18,613.47 and 5,012.11 is: 7,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.58 : 18,613.47 = 5,012.11 : x
  2. Step 2: Convert to fraction form
    12,408.58/18,613.47 = 5,012.11/x
  3. Step 3: Cross multiply
    12,408.58x = 18,613.47 × 5,012.11
  4. Step 4: Simplify right side
    12,408.58x = 93,292,759.12
  5. Step 5: Solve for x
    x = 93,292,759.12/12,408.58
  6. Step 6: Final answer
    x = 7,518.41

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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.