Home / 12,222.08-18,333.04-2,988

Finding the Fourth Proportional to 12,222.08, 18,333.04 and 2,988

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Solution

The fourth proportional to 12,222.08, 18,333.04 and 2,988 is: 4,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.08 : 18,333.04 = 2,988 : x
  2. Step 2: Convert to fraction form
    12,222.08/18,333.04 = 2,988/x
  3. Step 3: Cross multiply
    12,222.08x = 18,333.04 × 2,988
  4. Step 4: Simplify right side
    12,222.08x = 54,779,123.52
  5. Step 5: Solve for x
    x = 54,779,123.52/12,222.08
  6. Step 6: Final answer
    x = 4,481.98

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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.