Home / 14,435.91-19,921.61-8,467.70

Finding the Fourth Proportional to 14,435.91, 19,921.61 and 8,467.70

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Solution

The fourth proportional to 14,435.91, 19,921.61 and 8,467.70 is: 11,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,435.91 : 19,921.61 = 8,467.70 : x
  2. Step 2: Convert to fraction form
    14,435.91/19,921.61 = 8,467.70/x
  3. Step 3: Cross multiply
    14,435.91x = 19,921.61 × 8,467.70
  4. Step 4: Simplify right side
    14,435.91x = 168,690,138.56
  5. Step 5: Solve for x
    x = 168,690,138.56/14,435.91
  6. Step 6: Final answer
    x = 11,685.45

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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.