Home / 13,273.21-19,912.02-4,390.66

Finding the Fourth Proportional to 13,273.21, 19,912.02 and 4,390.66

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Solution

The fourth proportional to 13,273.21, 19,912.02 and 4,390.66 is: 6,586.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.21 : 19,912.02 = 4,390.66 : x
  2. Step 2: Convert to fraction form
    13,273.21/19,912.02 = 4,390.66/x
  3. Step 3: Cross multiply
    13,273.21x = 19,912.02 × 4,390.66
  4. Step 4: Simplify right side
    13,273.21x = 87,426,909.73
  5. Step 5: Solve for x
    x = 87,426,909.73/13,273.21
  6. Step 6: Final answer
    x = 6,586.72

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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.