Home / 12,222.28-18,333.39-2,988.28

Finding the Fourth Proportional to 12,222.28, 18,333.39 and 2,988.28

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Solution

The fourth proportional to 12,222.28, 18,333.39 and 2,988.28 is: 4,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.28 : 18,333.39 = 2,988.28 : x
  2. Step 2: Convert to fraction form
    12,222.28/18,333.39 = 2,988.28/x
  3. Step 3: Cross multiply
    12,222.28x = 18,333.39 × 2,988.28
  4. Step 4: Simplify right side
    12,222.28x = 54,785,302.67
  5. Step 5: Solve for x
    x = 54,785,302.67/12,222.28
  6. Step 6: Final answer
    x = 4,482.41

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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.