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Finding the Fourth Proportional to 8,358.84, 11,508.90 and 7,097.28

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Solution

The fourth proportional to 8,358.84, 11,508.90 and 7,097.28 is: 9,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.84 : 11,508.90 = 7,097.28 : x
  2. Step 2: Convert to fraction form
    8,358.84/11,508.90 = 7,097.28/x
  3. Step 3: Cross multiply
    8,358.84x = 11,508.90 × 7,097.28
  4. Step 4: Simplify right side
    8,358.84x = 81,681,885.79
  5. Step 5: Solve for x
    x = 81,681,885.79/8,358.84
  6. Step 6: Final answer
    x = 9,771.92

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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.