Home / 14,383.91-21,578.54-5,618.30

Finding the Fourth Proportional to 14,383.91, 21,578.54 and 5,618.30

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Solution

The fourth proportional to 14,383.91, 21,578.54 and 5,618.30 is: 8,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,383.91 : 21,578.54 = 5,618.30 : x
  2. Step 2: Convert to fraction form
    14,383.91/21,578.54 = 5,618.30/x
  3. Step 3: Cross multiply
    14,383.91x = 21,578.54 × 5,618.30
  4. Step 4: Simplify right side
    14,383.91x = 121,234,575.30
  5. Step 5: Solve for x
    x = 121,234,575.30/14,383.91
  6. Step 6: Final answer
    x = 8,428.48

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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.