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Finding the Fourth Proportional to 9,681.18, 13,370.56 and 7,799.02

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Solution

The fourth proportional to 9,681.18, 13,370.56 and 7,799.02 is: 10,771.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,681.18 : 13,370.56 = 7,799.02 : x
  2. Step 2: Convert to fraction form
    9,681.18/13,370.56 = 7,799.02/x
  3. Step 3: Cross multiply
    9,681.18x = 13,370.56 × 7,799.02
  4. Step 4: Simplify right side
    9,681.18x = 104,277,264.85
  5. Step 5: Solve for x
    x = 104,277,264.85/9,681.18
  6. Step 6: Final answer
    x = 10,771.13

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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.