Home / 18,776.72-28,150.32-9,412.04

Finding the Fourth Proportional to 18,776.72, 28,150.32 and 9,412.04

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Solution

The fourth proportional to 18,776.72, 28,150.32 and 9,412.04 is: 14,110.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.72 : 28,150.32 = 9,412.04 : x
  2. Step 2: Convert to fraction form
    18,776.72/28,150.32 = 9,412.04/x
  3. Step 3: Cross multiply
    18,776.72x = 28,150.32 × 9,412.04
  4. Step 4: Simplify right side
    18,776.72x = 264,951,937.85
  5. Step 5: Solve for x
    x = 264,951,937.85/18,776.72
  6. Step 6: Final answer
    x = 14,110.66

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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.