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Finding the Fourth Proportional to 14,472.66, 19,948.20 and 13,217.96

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Solution

The fourth proportional to 14,472.66, 19,948.20 and 13,217.96 is: 18,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,472.66 : 19,948.20 = 13,217.96 : x
  2. Step 2: Convert to fraction form
    14,472.66/19,948.20 = 13,217.96/x
  3. Step 3: Cross multiply
    14,472.66x = 19,948.20 × 13,217.96
  4. Step 4: Simplify right side
    14,472.66x = 263,674,509.67
  5. Step 5: Solve for x
    x = 263,674,509.67/14,472.66
  6. Step 6: Final answer
    x = 18,218.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.