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Finding the Fourth Proportional to 13,242.96, 18,275.27 and 7,275.02

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Solution

The fourth proportional to 13,242.96, 18,275.27 and 7,275.02 is: 10,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.96 : 18,275.27 = 7,275.02 : x
  2. Step 2: Convert to fraction form
    13,242.96/18,275.27 = 7,275.02/x
  3. Step 3: Cross multiply
    13,242.96x = 18,275.27 × 7,275.02
  4. Step 4: Simplify right side
    13,242.96x = 132,952,827.00
  5. Step 5: Solve for x
    x = 132,952,827.00/13,242.96
  6. Step 6: Final answer
    x = 10,039.51

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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.