Home / 12,222.29-18,333.39-4,429.28

Finding the Fourth Proportional to 12,222.29, 18,333.39 and 4,429.28

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Solution

The fourth proportional to 12,222.29, 18,333.39 and 4,429.28 is: 6,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.29 : 18,333.39 = 4,429.28 : x
  2. Step 2: Convert to fraction form
    12,222.29/18,333.39 = 4,429.28/x
  3. Step 3: Cross multiply
    12,222.29x = 18,333.39 × 4,429.28
  4. Step 4: Simplify right side
    12,222.29x = 81,203,717.66
  5. Step 5: Solve for x
    x = 81,203,717.66/12,222.29
  6. Step 6: Final answer
    x = 6,643.90

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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.