Home / 6,819.75-9,382.10-6,528.15

Finding the Fourth Proportional to 6,819.75, 9,382.10 and 6,528.15

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Solution

The fourth proportional to 6,819.75, 9,382.10 and 6,528.15 is: 8,980.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.75 : 9,382.10 = 6,528.15 : x
  2. Step 2: Convert to fraction form
    6,819.75/9,382.10 = 6,528.15/x
  3. Step 3: Cross multiply
    6,819.75x = 9,382.10 × 6,528.15
  4. Step 4: Simplify right side
    6,819.75x = 61,247,723.47
  5. Step 5: Solve for x
    x = 61,247,723.47/6,819.75
  6. Step 6: Final answer
    x = 8,980.93

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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.