Home / 12,408.60-18,618.30-6,252.60

Finding the Fourth Proportional to 12,408.60, 18,618.30 and 6,252.60

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Solution

The fourth proportional to 12,408.60, 18,618.30 and 6,252.60 is: 9,381.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.60 : 18,618.30 = 6,252.60 : x
  2. Step 2: Convert to fraction form
    12,408.60/18,618.30 = 6,252.60/x
  3. Step 3: Cross multiply
    12,408.60x = 18,618.30 × 6,252.60
  4. Step 4: Simplify right side
    12,408.60x = 116,412,782.58
  5. Step 5: Solve for x
    x = 116,412,782.58/12,408.60
  6. Step 6: Final answer
    x = 9,381.62

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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.