Home / 10,519.75-15,747.42-6,814.61

Finding the Fourth Proportional to 10,519.75, 15,747.42 and 6,814.61

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Solution

The fourth proportional to 10,519.75, 15,747.42 and 6,814.61 is: 10,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.75 : 15,747.42 = 6,814.61 : x
  2. Step 2: Convert to fraction form
    10,519.75/15,747.42 = 6,814.61/x
  3. Step 3: Cross multiply
    10,519.75x = 15,747.42 × 6,814.61
  4. Step 4: Simplify right side
    10,519.75x = 107,312,525.81
  5. Step 5: Solve for x
    x = 107,312,525.81/10,519.75
  6. Step 6: Final answer
    x = 10,201.05

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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.