Home / 14,788.42-20,403.13-9,755.15

Finding the Fourth Proportional to 14,788.42, 20,403.13 and 9,755.15

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Solution

The fourth proportional to 14,788.42, 20,403.13 and 9,755.15 is: 13,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,788.42 : 20,403.13 = 9,755.15 : x
  2. Step 2: Convert to fraction form
    14,788.42/20,403.13 = 9,755.15/x
  3. Step 3: Cross multiply
    14,788.42x = 20,403.13 × 9,755.15
  4. Step 4: Simplify right side
    14,788.42x = 199,035,593.62
  5. Step 5: Solve for x
    x = 199,035,593.62/14,788.42
  6. Step 6: Final answer
    x = 13,458.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.