Home / 16,388.62-22,618.92-9,317.32

Finding the Fourth Proportional to 16,388.62, 22,618.92 and 9,317.32

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Solution

The fourth proportional to 16,388.62, 22,618.92 and 9,317.32 is: 12,859.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,388.62 : 22,618.92 = 9,317.32 : x
  2. Step 2: Convert to fraction form
    16,388.62/22,618.92 = 9,317.32/x
  3. Step 3: Cross multiply
    16,388.62x = 22,618.92 × 9,317.32
  4. Step 4: Simplify right side
    16,388.62x = 210,747,715.69
  5. Step 5: Solve for x
    x = 210,747,715.69/16,388.62
  6. Step 6: Final answer
    x = 12,859.39

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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.