Home / 14,434.20-19,919.46-8,145.36

Finding the Fourth Proportional to 14,434.20, 19,919.46 and 8,145.36

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Solution

The fourth proportional to 14,434.20, 19,919.46 and 8,145.36 is: 11,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,434.20 : 19,919.46 = 8,145.36 : x
  2. Step 2: Convert to fraction form
    14,434.20/19,919.46 = 8,145.36/x
  3. Step 3: Cross multiply
    14,434.20x = 19,919.46 × 8,145.36
  4. Step 4: Simplify right side
    14,434.20x = 162,251,172.71
  5. Step 5: Solve for x
    x = 162,251,172.71/14,434.20
  6. Step 6: Final answer
    x = 11,240.75

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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.