Home / 14,351.50-21,514.90-4,990.30

Finding the Fourth Proportional to 14,351.50, 21,514.90 and 4,990.30

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Solution

The fourth proportional to 14,351.50, 21,514.90 and 4,990.30 is: 7,481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,351.50 : 21,514.90 = 4,990.30 : x
  2. Step 2: Convert to fraction form
    14,351.50/21,514.90 = 4,990.30/x
  3. Step 3: Cross multiply
    14,351.50x = 21,514.90 × 4,990.30
  4. Step 4: Simplify right side
    14,351.50x = 107,365,805.47
  5. Step 5: Solve for x
    x = 107,365,805.47/14,351.50
  6. Step 6: Final answer
    x = 7,481.16

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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.