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Finding the Fourth Proportional to 14,520.60, 20,042.94 and 11,541.72

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Solution

The fourth proportional to 14,520.60, 20,042.94 and 11,541.72 is: 15,931.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.60 : 20,042.94 = 11,541.72 : x
  2. Step 2: Convert to fraction form
    14,520.60/20,042.94 = 11,541.72/x
  3. Step 3: Cross multiply
    14,520.60x = 20,042.94 × 11,541.72
  4. Step 4: Simplify right side
    14,520.60x = 231,330,001.46
  5. Step 5: Solve for x
    x = 231,330,001.46/14,520.60
  6. Step 6: Final answer
    x = 15,931.16

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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.