Home / 8,956.16-13,436.64-3,112.76

Finding the Fourth Proportional to 8,956.16, 13,436.64 and 3,112.76

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Solution

The fourth proportional to 8,956.16, 13,436.64 and 3,112.76 is: 4,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.16 : 13,436.64 = 3,112.76 : x
  2. Step 2: Convert to fraction form
    8,956.16/13,436.64 = 3,112.76/x
  3. Step 3: Cross multiply
    8,956.16x = 13,436.64 × 3,112.76
  4. Step 4: Simplify right side
    8,956.16x = 41,825,035.53
  5. Step 5: Solve for x
    x = 41,825,035.53/8,956.16
  6. Step 6: Final answer
    x = 4,669.97

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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.