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Finding the Fourth Proportional to 13,592.59, 18,729.03 and 12,657.58

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Solution

The fourth proportional to 13,592.59, 18,729.03 and 12,657.58 is: 17,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.59 : 18,729.03 = 12,657.58 : x
  2. Step 2: Convert to fraction form
    13,592.59/18,729.03 = 12,657.58/x
  3. Step 3: Cross multiply
    13,592.59x = 18,729.03 × 12,657.58
  4. Step 4: Simplify right side
    13,592.59x = 237,064,195.55
  5. Step 5: Solve for x
    x = 237,064,195.55/13,592.59
  6. Step 6: Final answer
    x = 17,440.69

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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.