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Finding the Fourth Proportional to 8,958.66, 12,369.11 and 5,603.10

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Solution

The fourth proportional to 8,958.66, 12,369.11 and 5,603.10 is: 7,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.66 : 12,369.11 = 5,603.10 : x
  2. Step 2: Convert to fraction form
    8,958.66/12,369.11 = 5,603.10/x
  3. Step 3: Cross multiply
    8,958.66x = 12,369.11 × 5,603.10
  4. Step 4: Simplify right side
    8,958.66x = 69,305,332.23
  5. Step 5: Solve for x
    x = 69,305,332.23/8,958.66
  6. Step 6: Final answer
    x = 7,736.13

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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.