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Finding the Fourth Proportional to 14,772.79, 22,143.63 and 4,909.42

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Solution

The fourth proportional to 14,772.79, 22,143.63 and 4,909.42 is: 7,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.79 : 22,143.63 = 4,909.42 : x
  2. Step 2: Convert to fraction form
    14,772.79/22,143.63 = 4,909.42/x
  3. Step 3: Cross multiply
    14,772.79x = 22,143.63 × 4,909.42
  4. Step 4: Simplify right side
    14,772.79x = 108,712,379.99
  5. Step 5: Solve for x
    x = 108,712,379.99/14,772.79
  6. Step 6: Final answer
    x = 7,358.96

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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.