Home / 13,492.04-20,178.90-8,212.48

Finding the Fourth Proportional to 13,492.04, 20,178.90 and 8,212.48

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Solution

The fourth proportional to 13,492.04, 20,178.90 and 8,212.48 is: 12,282.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,492.04 : 20,178.90 = 8,212.48 : x
  2. Step 2: Convert to fraction form
    13,492.04/20,178.90 = 8,212.48/x
  3. Step 3: Cross multiply
    13,492.04x = 20,178.90 × 8,212.48
  4. Step 4: Simplify right side
    13,492.04x = 165,718,812.67
  5. Step 5: Solve for x
    x = 165,718,812.67/13,492.04
  6. Step 6: Final answer
    x = 12,282.71

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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.