Home / 14,310.56-21,479.68-6,920.24

Finding the Fourth Proportional to 14,310.56, 21,479.68 and 6,920.24

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Solution

The fourth proportional to 14,310.56, 21,479.68 and 6,920.24 is: 10,387.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,310.56 : 21,479.68 = 6,920.24 : x
  2. Step 2: Convert to fraction form
    14,310.56/21,479.68 = 6,920.24/x
  3. Step 3: Cross multiply
    14,310.56x = 21,479.68 × 6,920.24
  4. Step 4: Simplify right side
    14,310.56x = 148,644,540.72
  5. Step 5: Solve for x
    x = 148,644,540.72/14,310.56
  6. Step 6: Final answer
    x = 10,387.05

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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.