Home / 14,347.91-21,520.14-3,818.70

Finding the Fourth Proportional to 14,347.91, 21,520.14 and 3,818.70

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Solution

The fourth proportional to 14,347.91, 21,520.14 and 3,818.70 is: 5,727.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.91 : 21,520.14 = 3,818.70 : x
  2. Step 2: Convert to fraction form
    14,347.91/21,520.14 = 3,818.70/x
  3. Step 3: Cross multiply
    14,347.91x = 21,520.14 × 3,818.70
  4. Step 4: Simplify right side
    14,347.91x = 82,178,958.62
  5. Step 5: Solve for x
    x = 82,178,958.62/14,347.91
  6. Step 6: Final answer
    x = 5,727.59

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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.