Home / 8,635.12-12,948.81-3,956.66

Finding the Fourth Proportional to 8,635.12, 12,948.81 and 3,956.66

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Solution

The fourth proportional to 8,635.12, 12,948.81 and 3,956.66 is: 5,933.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.12 : 12,948.81 = 3,956.66 : x
  2. Step 2: Convert to fraction form
    8,635.12/12,948.81 = 3,956.66/x
  3. Step 3: Cross multiply
    8,635.12x = 12,948.81 × 3,956.66
  4. Step 4: Simplify right side
    8,635.12x = 51,234,102.64
  5. Step 5: Solve for x
    x = 51,234,102.64/8,635.12
  6. Step 6: Final answer
    x = 5,933.22

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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.