Home / 11,709.32-17,557.68-5,127.85

Finding the Fourth Proportional to 11,709.32, 17,557.68 and 5,127.85

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Solution

The fourth proportional to 11,709.32, 17,557.68 and 5,127.85 is: 7,689.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.32 : 17,557.68 = 5,127.85 : x
  2. Step 2: Convert to fraction form
    11,709.32/17,557.68 = 5,127.85/x
  3. Step 3: Cross multiply
    11,709.32x = 17,557.68 × 5,127.85
  4. Step 4: Simplify right side
    11,709.32x = 90,033,149.39
  5. Step 5: Solve for x
    x = 90,033,149.39/11,709.32
  6. Step 6: Final answer
    x = 7,689.02

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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.