Home / 12,220.66-18,325.59-5,200.39

Finding the Fourth Proportional to 12,220.66, 18,325.59 and 5,200.39

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Solution

The fourth proportional to 12,220.66, 18,325.59 and 5,200.39 is: 7,798.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.66 : 18,325.59 = 5,200.39 : x
  2. Step 2: Convert to fraction form
    12,220.66/18,325.59 = 5,200.39/x
  3. Step 3: Cross multiply
    12,220.66x = 18,325.59 × 5,200.39
  4. Step 4: Simplify right side
    12,220.66x = 95,300,214.98
  5. Step 5: Solve for x
    x = 95,300,214.98/12,220.66
  6. Step 6: Final answer
    x = 7,798.29

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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.