Home / 14,434.28-19,917.87-8,145.44

Finding the Fourth Proportional to 14,434.28, 19,917.87 and 8,145.44

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Solution

The fourth proportional to 14,434.28, 19,917.87 and 8,145.44 is: 11,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,434.28 : 19,917.87 = 8,145.44 : x
  2. Step 2: Convert to fraction form
    14,434.28/19,917.87 = 8,145.44/x
  3. Step 3: Cross multiply
    14,434.28x = 19,917.87 × 8,145.44
  4. Step 4: Simplify right side
    14,434.28x = 162,239,815.01
  5. Step 5: Solve for x
    x = 162,239,815.01/14,434.28
  6. Step 6: Final answer
    x = 11,239.90

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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.