Home / 12,218.61-18,330.36-4,826.55

Finding the Fourth Proportional to 12,218.61, 18,330.36 and 4,826.55

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Solution

The fourth proportional to 12,218.61, 18,330.36 and 4,826.55 is: 7,240.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.61 : 18,330.36 = 4,826.55 : x
  2. Step 2: Convert to fraction form
    12,218.61/18,330.36 = 4,826.55/x
  3. Step 3: Cross multiply
    12,218.61x = 18,330.36 × 4,826.55
  4. Step 4: Simplify right side
    12,218.61x = 88,472,399.06
  5. Step 5: Solve for x
    x = 88,472,399.06/12,218.61
  6. Step 6: Final answer
    x = 7,240.79

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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.