Home / 7,819.85-10,790.39-6,230.53

Finding the Fourth Proportional to 7,819.85, 10,790.39 and 6,230.53

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Solution

The fourth proportional to 7,819.85, 10,790.39 and 6,230.53 is: 8,597.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.85 : 10,790.39 = 6,230.53 : x
  2. Step 2: Convert to fraction form
    7,819.85/10,790.39 = 6,230.53/x
  3. Step 3: Cross multiply
    7,819.85x = 10,790.39 × 6,230.53
  4. Step 4: Simplify right side
    7,819.85x = 67,229,837.21
  5. Step 5: Solve for x
    x = 67,229,837.21/7,819.85
  6. Step 6: Final answer
    x = 8,597.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.