Home / 8,418.22-11,614.32-5,436.07

Finding the Fourth Proportional to 8,418.22, 11,614.32 and 5,436.07

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Solution

The fourth proportional to 8,418.22, 11,614.32 and 5,436.07 is: 7,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.22 : 11,614.32 = 5,436.07 : x
  2. Step 2: Convert to fraction form
    8,418.22/11,614.32 = 5,436.07/x
  3. Step 3: Cross multiply
    8,418.22x = 11,614.32 × 5,436.07
  4. Step 4: Simplify right side
    8,418.22x = 63,136,227.49
  5. Step 5: Solve for x
    x = 63,136,227.49/8,418.22
  6. Step 6: Final answer
    x = 7,499.95

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1.5x scale

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.