Home / 12,812.56-19,227.39-4,492.57

Finding the Fourth Proportional to 12,812.56, 19,227.39 and 4,492.57

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Solution

The fourth proportional to 12,812.56, 19,227.39 and 4,492.57 is: 6,741.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812.56 : 19,227.39 = 4,492.57 : x
  2. Step 2: Convert to fraction form
    12,812.56/19,227.39 = 4,492.57/x
  3. Step 3: Cross multiply
    12,812.56x = 19,227.39 × 4,492.57
  4. Step 4: Simplify right side
    12,812.56x = 86,380,395.49
  5. Step 5: Solve for x
    x = 86,380,395.49/12,812.56
  6. Step 6: Final answer
    x = 6,741.85

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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.