Home / 14,780.52-20,389.19-9,994.19

Finding the Fourth Proportional to 14,780.52, 20,389.19 and 9,994.19

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Solution

The fourth proportional to 14,780.52, 20,389.19 and 9,994.19 is: 13,786.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.52 : 20,389.19 = 9,994.19 : x
  2. Step 2: Convert to fraction form
    14,780.52/20,389.19 = 9,994.19/x
  3. Step 3: Cross multiply
    14,780.52x = 20,389.19 × 9,994.19
  4. Step 4: Simplify right side
    14,780.52x = 203,773,286.89
  5. Step 5: Solve for x
    x = 203,773,286.89/14,780.52
  6. Step 6: Final answer
    x = 13,786.61

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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.