Home / 12,222.10-18,333.15-5,200.30

Finding the Fourth Proportional to 12,222.10, 18,333.15 and 5,200.30

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Solution

The fourth proportional to 12,222.10, 18,333.15 and 5,200.30 is: 7,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.10 : 18,333.15 = 5,200.30 : x
  2. Step 2: Convert to fraction form
    12,222.10/18,333.15 = 5,200.30/x
  3. Step 3: Cross multiply
    12,222.10x = 18,333.15 × 5,200.30
  4. Step 4: Simplify right side
    12,222.10x = 95,337,879.95
  5. Step 5: Solve for x
    x = 95,337,879.95/12,222.10
  6. Step 6: Final answer
    x = 7,800.45

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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.