Home / 11,350.18-15,660.84-7,156

Finding the Fourth Proportional to 11,350.18, 15,660.84 and 7,156

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Solution

The fourth proportional to 11,350.18, 15,660.84 and 7,156 is: 9,873.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,350.18 : 15,660.84 = 7,156 : x
  2. Step 2: Convert to fraction form
    11,350.18/15,660.84 = 7,156/x
  3. Step 3: Cross multiply
    11,350.18x = 15,660.84 × 7,156
  4. Step 4: Simplify right side
    11,350.18x = 112,068,971.04
  5. Step 5: Solve for x
    x = 112,068,971.04/11,350.18
  6. Step 6: Final answer
    x = 9,873.76

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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.