Home / 12,982.22-19,478.71-6,224.39

Finding the Fourth Proportional to 12,982.22, 19,478.71 and 6,224.39

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Solution

The fourth proportional to 12,982.22, 19,478.71 and 6,224.39 is: 9,339.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.22 : 19,478.71 = 6,224.39 : x
  2. Step 2: Convert to fraction form
    12,982.22/19,478.71 = 6,224.39/x
  3. Step 3: Cross multiply
    12,982.22x = 19,478.71 × 6,224.39
  4. Step 4: Simplify right side
    12,982.22x = 121,243,087.74
  5. Step 5: Solve for x
    x = 121,243,087.74/12,982.22
  6. Step 6: Final answer
    x = 9,339.16

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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.