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Finding the Fourth Proportional to 8,798.78, 12,146.22 and 5,616.26

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Solution

The fourth proportional to 8,798.78, 12,146.22 and 5,616.26 is: 7,752.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.78 : 12,146.22 = 5,616.26 : x
  2. Step 2: Convert to fraction form
    8,798.78/12,146.22 = 5,616.26/x
  3. Step 3: Cross multiply
    8,798.78x = 12,146.22 × 5,616.26
  4. Step 4: Simplify right side
    8,798.78x = 68,216,329.54
  5. Step 5: Solve for x
    x = 68,216,329.54/8,798.78
  6. Step 6: Final answer
    x = 7,752.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.