Home / 18,861.51-28,292.63-5,713.83

Finding the Fourth Proportional to 18,861.51, 28,292.63 and 5,713.83

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Solution

The fourth proportional to 18,861.51, 28,292.63 and 5,713.83 is: 8,570.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.51 : 28,292.63 = 5,713.83 : x
  2. Step 2: Convert to fraction form
    18,861.51/28,292.63 = 5,713.83/x
  3. Step 3: Cross multiply
    18,861.51x = 28,292.63 × 5,713.83
  4. Step 4: Simplify right side
    18,861.51x = 161,659,249.50
  5. Step 5: Solve for x
    x = 161,659,249.50/18,861.51
  6. Step 6: Final answer
    x = 8,570.85

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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.