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Finding the Fourth Proportional to 13,038.15, 17,992.17 and 7,069.71

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Solution

The fourth proportional to 13,038.15, 17,992.17 and 7,069.71 is: 9,755.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.15 : 17,992.17 = 7,069.71 : x
  2. Step 2: Convert to fraction form
    13,038.15/17,992.17 = 7,069.71/x
  3. Step 3: Cross multiply
    13,038.15x = 17,992.17 × 7,069.71
  4. Step 4: Simplify right side
    13,038.15x = 127,199,424.17
  5. Step 5: Solve for x
    x = 127,199,424.17/13,038.15
  6. Step 6: Final answer
    x = 9,755.94

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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.