Home / 14,255.35-21,367.90-5,486.47

Finding the Fourth Proportional to 14,255.35, 21,367.90 and 5,486.47

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Solution

The fourth proportional to 14,255.35, 21,367.90 and 5,486.47 is: 8,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.35 : 21,367.90 = 5,486.47 : x
  2. Step 2: Convert to fraction form
    14,255.35/21,367.90 = 5,486.47/x
  3. Step 3: Cross multiply
    14,255.35x = 21,367.90 × 5,486.47
  4. Step 4: Simplify right side
    14,255.35x = 117,234,342.31
  5. Step 5: Solve for x
    x = 117,234,342.31/14,255.35
  6. Step 6: Final answer
    x = 8,223.88

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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.