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Finding the Fourth Proportional to 9,767.95, 13,479.74 and 5,291.81

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Solution

The fourth proportional to 9,767.95, 13,479.74 and 5,291.81 is: 7,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,767.95 : 13,479.74 = 5,291.81 : x
  2. Step 2: Convert to fraction form
    9,767.95/13,479.74 = 5,291.81/x
  3. Step 3: Cross multiply
    9,767.95x = 13,479.74 × 5,291.81
  4. Step 4: Simplify right side
    9,767.95x = 71,332,219.31
  5. Step 5: Solve for x
    x = 71,332,219.31/9,767.95
  6. Step 6: Final answer
    x = 7,302.68

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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.