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Finding the Fourth Proportional to 14,216.72, 19,626.50 and 9,980.62

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Solution

The fourth proportional to 14,216.72, 19,626.50 and 9,980.62 is: 13,778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.72 : 19,626.50 = 9,980.62 : x
  2. Step 2: Convert to fraction form
    14,216.72/19,626.50 = 9,980.62/x
  3. Step 3: Cross multiply
    14,216.72x = 19,626.50 × 9,980.62
  4. Step 4: Simplify right side
    14,216.72x = 195,884,614.32
  5. Step 5: Solve for x
    x = 195,884,614.32/14,216.72
  6. Step 6: Final answer
    x = 13,778.47

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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.