Home / 18,865.24-28,309.74-10,550.70

Finding the Fourth Proportional to 18,865.24, 28,309.74 and 10,550.70

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Solution

The fourth proportional to 18,865.24, 28,309.74 and 10,550.70 is: 15,832.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.24 : 28,309.74 = 10,550.70 : x
  2. Step 2: Convert to fraction form
    18,865.24/28,309.74 = 10,550.70/x
  3. Step 3: Cross multiply
    18,865.24x = 28,309.74 × 10,550.70
  4. Step 4: Simplify right side
    18,865.24x = 298,687,573.82
  5. Step 5: Solve for x
    x = 298,687,573.82/18,865.24
  6. Step 6: Final answer
    x = 15,832.69

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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.