Home / 14,620.96-20,178.78-9,589.40

Finding the Fourth Proportional to 14,620.96, 20,178.78 and 9,589.40

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Solution

The fourth proportional to 14,620.96, 20,178.78 and 9,589.40 is: 13,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,620.96 : 20,178.78 = 9,589.40 : x
  2. Step 2: Convert to fraction form
    14,620.96/20,178.78 = 9,589.40/x
  3. Step 3: Cross multiply
    14,620.96x = 20,178.78 × 9,589.40
  4. Step 4: Simplify right side
    14,620.96x = 193,502,392.93
  5. Step 5: Solve for x
    x = 193,502,392.93/14,620.96
  6. Step 6: Final answer
    x = 13,234.59

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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.