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Finding the Fourth Proportional to 11,292.80, 15,582.78 and 6,255.74

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Solution

The fourth proportional to 11,292.80, 15,582.78 and 6,255.74 is: 8,632.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,292.80 : 15,582.78 = 6,255.74 : x
  2. Step 2: Convert to fraction form
    11,292.80/15,582.78 = 6,255.74/x
  3. Step 3: Cross multiply
    11,292.80x = 15,582.78 × 6,255.74
  4. Step 4: Simplify right side
    11,292.80x = 97,481,859.11
  5. Step 5: Solve for x
    x = 97,481,859.11/11,292.80
  6. Step 6: Final answer
    x = 8,632.22

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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.