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Finding the Fourth Proportional to 14,881.47, 20,536.68 and 8,167.72

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Solution

The fourth proportional to 14,881.47, 20,536.68 and 8,167.72 is: 11,271.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,881.47 : 20,536.68 = 8,167.72 : x
  2. Step 2: Convert to fraction form
    14,881.47/20,536.68 = 8,167.72/x
  3. Step 3: Cross multiply
    14,881.47x = 20,536.68 × 8,167.72
  4. Step 4: Simplify right side
    14,881.47x = 167,737,823.82
  5. Step 5: Solve for x
    x = 167,737,823.82/14,881.47
  6. Step 6: Final answer
    x = 11,271.59

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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.