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Finding the Fourth Proportional to 15,543.72, 23,308.73 and 4,447.88

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Solution

The fourth proportional to 15,543.72, 23,308.73 and 4,447.88 is: 6,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.72 : 23,308.73 = 4,447.88 : x
  2. Step 2: Convert to fraction form
    15,543.72/23,308.73 = 4,447.88/x
  3. Step 3: Cross multiply
    15,543.72x = 23,308.73 × 4,447.88
  4. Step 4: Simplify right side
    15,543.72x = 103,674,530.41
  5. Step 5: Solve for x
    x = 103,674,530.41/15,543.72
  6. Step 6: Final answer
    x = 6,669.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.