Home / 12,200.49-18,294.26-5,621.06

Finding the Fourth Proportional to 12,200.49, 18,294.26 and 5,621.06

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Solution

The fourth proportional to 12,200.49, 18,294.26 and 5,621.06 is: 8,428.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.49 : 18,294.26 = 5,621.06 : x
  2. Step 2: Convert to fraction form
    12,200.49/18,294.26 = 5,621.06/x
  3. Step 3: Cross multiply
    12,200.49x = 18,294.26 × 5,621.06
  4. Step 4: Simplify right side
    12,200.49x = 102,833,150.75
  5. Step 5: Solve for x
    x = 102,833,150.75/12,200.49
  6. Step 6: Final answer
    x = 8,428.61

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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.