Home / 18,723.96-28,087.86-6,412.92

Finding the Fourth Proportional to 18,723.96, 28,087.86 and 6,412.92

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Solution

The fourth proportional to 18,723.96, 28,087.86 and 6,412.92 is: 9,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.96 : 28,087.86 = 6,412.92 : x
  2. Step 2: Convert to fraction form
    18,723.96/28,087.86 = 6,412.92/x
  3. Step 3: Cross multiply
    18,723.96x = 28,087.86 × 6,412.92
  4. Step 4: Simplify right side
    18,723.96x = 180,125,199.15
  5. Step 5: Solve for x
    x = 180,125,199.15/18,723.96
  6. Step 6: Final answer
    x = 9,620.04

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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.