Home / 14,780.17-20,396.82-8,815.24

Finding the Fourth Proportional to 14,780.17, 20,396.82 and 8,815.24

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Solution

The fourth proportional to 14,780.17, 20,396.82 and 8,815.24 is: 12,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.17 : 20,396.82 = 8,815.24 : x
  2. Step 2: Convert to fraction form
    14,780.17/20,396.82 = 8,815.24/x
  3. Step 3: Cross multiply
    14,780.17x = 20,396.82 × 8,815.24
  4. Step 4: Simplify right side
    14,780.17x = 179,802,863.54
  5. Step 5: Solve for x
    x = 179,802,863.54/14,780.17
  6. Step 6: Final answer
    x = 12,165.14

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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.