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Finding the Fourth Proportional to 8,775, 12,109.16 and 4,796.26

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Solution

The fourth proportional to 8,775, 12,109.16 and 4,796.26 is: 6,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775 : 12,109.16 = 4,796.26 : x
  2. Step 2: Convert to fraction form
    8,775/12,109.16 = 4,796.26/x
  3. Step 3: Cross multiply
    8,775x = 12,109.16 × 4,796.26
  4. Step 4: Simplify right side
    8,775x = 58,078,679.74
  5. Step 5: Solve for x
    x = 58,078,679.74/8,775
  6. Step 6: Final answer
    x = 6,618.65

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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.