Home / 16,805.77-25,212.30-5,118.68

Finding the Fourth Proportional to 16,805.77, 25,212.30 and 5,118.68

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Solution

The fourth proportional to 16,805.77, 25,212.30 and 5,118.68 is: 7,679.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,805.77 : 25,212.30 = 5,118.68 : x
  2. Step 2: Convert to fraction form
    16,805.77/25,212.30 = 5,118.68/x
  3. Step 3: Cross multiply
    16,805.77x = 25,212.30 × 5,118.68
  4. Step 4: Simplify right side
    16,805.77x = 129,053,695.76
  5. Step 5: Solve for x
    x = 129,053,695.76/16,805.77
  6. Step 6: Final answer
    x = 7,679.13

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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.