Home / 12,231.05-18,353.88-4,440.47

Finding the Fourth Proportional to 12,231.05, 18,353.88 and 4,440.47

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Solution

The fourth proportional to 12,231.05, 18,353.88 and 4,440.47 is: 6,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.05 : 18,353.88 = 4,440.47 : x
  2. Step 2: Convert to fraction form
    12,231.05/18,353.88 = 4,440.47/x
  3. Step 3: Cross multiply
    12,231.05x = 18,353.88 × 4,440.47
  4. Step 4: Simplify right side
    12,231.05x = 81,499,761.75
  5. Step 5: Solve for x
    x = 81,499,761.75/12,231.05
  6. Step 6: Final answer
    x = 6,663.35

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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.