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Finding the Fourth Proportional to 8,676.66, 13,017.45 and 3,486.18

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Solution

The fourth proportional to 8,676.66, 13,017.45 and 3,486.18 is: 5,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.66 : 13,017.45 = 3,486.18 : x
  2. Step 2: Convert to fraction form
    8,676.66/13,017.45 = 3,486.18/x
  3. Step 3: Cross multiply
    8,676.66x = 13,017.45 × 3,486.18
  4. Step 4: Simplify right side
    8,676.66x = 45,381,173.84
  5. Step 5: Solve for x
    x = 45,381,173.84/8,676.66
  6. Step 6: Final answer
    x = 5,230.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.