Home / 11,981.62-17,977.23-5,057.14

Finding the Fourth Proportional to 11,981.62, 17,977.23 and 5,057.14

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Solution

The fourth proportional to 11,981.62, 17,977.23 and 5,057.14 is: 7,587.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.62 : 17,977.23 = 5,057.14 : x
  2. Step 2: Convert to fraction form
    11,981.62/17,977.23 = 5,057.14/x
  3. Step 3: Cross multiply
    11,981.62x = 17,977.23 × 5,057.14
  4. Step 4: Simplify right side
    11,981.62x = 90,913,368.92
  5. Step 5: Solve for x
    x = 90,913,368.92/11,981.62
  6. Step 6: Final answer
    x = 7,587.74

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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.