Home / 14,656.92-20,218.23-8,687.58

Finding the Fourth Proportional to 14,656.92, 20,218.23 and 8,687.58

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Solution

The fourth proportional to 14,656.92, 20,218.23 and 8,687.58 is: 11,983.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,656.92 : 20,218.23 = 8,687.58 : x
  2. Step 2: Convert to fraction form
    14,656.92/20,218.23 = 8,687.58/x
  3. Step 3: Cross multiply
    14,656.92x = 20,218.23 × 8,687.58
  4. Step 4: Simplify right side
    14,656.92x = 175,647,490.58
  5. Step 5: Solve for x
    x = 175,647,490.58/14,656.92
  6. Step 6: Final answer
    x = 11,983.93

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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.