Home / 13,649.91-20,479.72-5,854.47

Finding the Fourth Proportional to 13,649.91, 20,479.72 and 5,854.47

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Solution

The fourth proportional to 13,649.91, 20,479.72 and 5,854.47 is: 8,783.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.91 : 20,479.72 = 5,854.47 : x
  2. Step 2: Convert to fraction form
    13,649.91/20,479.72 = 5,854.47/x
  3. Step 3: Cross multiply
    13,649.91x = 20,479.72 × 5,854.47
  4. Step 4: Simplify right side
    13,649.91x = 119,897,906.35
  5. Step 5: Solve for x
    x = 119,897,906.35/13,649.91
  6. Step 6: Final answer
    x = 8,783.79

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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.