Home / 11,509.36-17,264.85-3,718.78

Finding the Fourth Proportional to 11,509.36, 17,264.85 and 3,718.78

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Solution

The fourth proportional to 11,509.36, 17,264.85 and 3,718.78 is: 5,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,509.36 : 17,264.85 = 3,718.78 : x
  2. Step 2: Convert to fraction form
    11,509.36/17,264.85 = 3,718.78/x
  3. Step 3: Cross multiply
    11,509.36x = 17,264.85 × 3,718.78
  4. Step 4: Simplify right side
    11,509.36x = 64,204,178.88
  5. Step 5: Solve for x
    x = 64,204,178.88/11,509.36
  6. Step 6: Final answer
    x = 5,578.43

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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.