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Finding the Fourth Proportional to 14,499.59, 20,009.84 and 8,211.96

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Solution

The fourth proportional to 14,499.59, 20,009.84 and 8,211.96 is: 11,332.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,499.59 : 20,009.84 = 8,211.96 : x
  2. Step 2: Convert to fraction form
    14,499.59/20,009.84 = 8,211.96/x
  3. Step 3: Cross multiply
    14,499.59x = 20,009.84 × 8,211.96
  4. Step 4: Simplify right side
    14,499.59x = 164,319,964.63
  5. Step 5: Solve for x
    x = 164,319,964.63/14,499.59
  6. Step 6: Final answer
    x = 11,332.74

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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.