Home / 12,118.35-18,181.04-4,327.77

Finding the Fourth Proportional to 12,118.35, 18,181.04 and 4,327.77

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Solution

The fourth proportional to 12,118.35, 18,181.04 and 4,327.77 is: 6,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.35 : 18,181.04 = 4,327.77 : x
  2. Step 2: Convert to fraction form
    12,118.35/18,181.04 = 4,327.77/x
  3. Step 3: Cross multiply
    12,118.35x = 18,181.04 × 4,327.77
  4. Step 4: Simplify right side
    12,118.35x = 78,683,337.84
  5. Step 5: Solve for x
    x = 78,683,337.84/12,118.35
  6. Step 6: Final answer
    x = 6,492.91

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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.