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Finding the Fourth Proportional to 13,310.53, 18,368.43 and 7,342.07

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Solution

The fourth proportional to 13,310.53, 18,368.43 and 7,342.07 is: 10,132.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.53 : 18,368.43 = 7,342.07 : x
  2. Step 2: Convert to fraction form
    13,310.53/18,368.43 = 7,342.07/x
  3. Step 3: Cross multiply
    13,310.53x = 18,368.43 × 7,342.07
  4. Step 4: Simplify right side
    13,310.53x = 134,862,298.85
  5. Step 5: Solve for x
    x = 134,862,298.85/13,310.53
  6. Step 6: Final answer
    x = 10,132.00

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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.