Home / 10,519.24-15,778.86-6,613.96

Finding the Fourth Proportional to 10,519.24, 15,778.86 and 6,613.96

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Solution

The fourth proportional to 10,519.24, 15,778.86 and 6,613.96 is: 9,920.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.24 : 15,778.86 = 6,613.96 : x
  2. Step 2: Convert to fraction form
    10,519.24/15,778.86 = 6,613.96/x
  3. Step 3: Cross multiply
    10,519.24x = 15,778.86 × 6,613.96
  4. Step 4: Simplify right side
    10,519.24x = 104,360,748.89
  5. Step 5: Solve for x
    x = 104,360,748.89/10,519.24
  6. Step 6: Final answer
    x = 9,920.94

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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.