Home / 12,492.53-18,740.20-4,173.12

Finding the Fourth Proportional to 12,492.53, 18,740.20 and 4,173.12

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Solution

The fourth proportional to 12,492.53, 18,740.20 and 4,173.12 is: 6,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.53 : 18,740.20 = 4,173.12 : x
  2. Step 2: Convert to fraction form
    12,492.53/18,740.20 = 4,173.12/x
  3. Step 3: Cross multiply
    12,492.53x = 18,740.20 × 4,173.12
  4. Step 4: Simplify right side
    12,492.53x = 78,205,103.42
  5. Step 5: Solve for x
    x = 78,205,103.42/12,492.53
  6. Step 6: Final answer
    x = 6,260.15

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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.