Home / 12,621.96-18,936.59-5,225.04

Finding the Fourth Proportional to 12,621.96, 18,936.59 and 5,225.04

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Solution

The fourth proportional to 12,621.96, 18,936.59 and 5,225.04 is: 7,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.96 : 18,936.59 = 5,225.04 : x
  2. Step 2: Convert to fraction form
    12,621.96/18,936.59 = 5,225.04/x
  3. Step 3: Cross multiply
    12,621.96x = 18,936.59 × 5,225.04
  4. Step 4: Simplify right side
    12,621.96x = 98,944,414.09
  5. Step 5: Solve for x
    x = 98,944,414.09/12,621.96
  6. Step 6: Final answer
    x = 7,839.07

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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.