Home / 14,152.43-21,228.85-5,387.83

Finding the Fourth Proportional to 14,152.43, 21,228.85 and 5,387.83

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Solution

The fourth proportional to 14,152.43, 21,228.85 and 5,387.83 is: 8,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,152.43 : 21,228.85 = 5,387.83 : x
  2. Step 2: Convert to fraction form
    14,152.43/21,228.85 = 5,387.83/x
  3. Step 3: Cross multiply
    14,152.43x = 21,228.85 × 5,387.83
  4. Step 4: Simplify right side
    14,152.43x = 114,377,388.56
  5. Step 5: Solve for x
    x = 114,377,388.56/14,152.43
  6. Step 6: Final answer
    x = 8,081.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.