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Finding the Fourth Proportional to 8,671.66, 11,962.96 and 5,525.90

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Solution

The fourth proportional to 8,671.66, 11,962.96 and 5,525.90 is: 7,623.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.66 : 11,962.96 = 5,525.90 : x
  2. Step 2: Convert to fraction form
    8,671.66/11,962.96 = 5,525.90/x
  3. Step 3: Cross multiply
    8,671.66x = 11,962.96 × 5,525.90
  4. Step 4: Simplify right side
    8,671.66x = 66,106,120.66
  5. Step 5: Solve for x
    x = 66,106,120.66/8,671.66
  6. Step 6: Final answer
    x = 7,623.24

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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.