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Finding the Fourth Proportional to 13,008.56, 17,951.68 and 7,040.08

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Solution

The fourth proportional to 13,008.56, 17,951.68 and 7,040.08 is: 9,715.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.56 : 17,951.68 = 7,040.08 : x
  2. Step 2: Convert to fraction form
    13,008.56/17,951.68 = 7,040.08/x
  3. Step 3: Cross multiply
    13,008.56x = 17,951.68 × 7,040.08
  4. Step 4: Simplify right side
    13,008.56x = 126,381,263.33
  5. Step 5: Solve for x
    x = 126,381,263.33/13,008.56
  6. Step 6: Final answer
    x = 9,715.24

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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.