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Finding the Fourth Proportional to 6,819.79, 10,225.13 and 5,505.16

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Solution

The fourth proportional to 6,819.79, 10,225.13 and 5,505.16 is: 8,254.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,819.79 : 10,225.13 = 5,505.16 : x
  2. Step 2: Convert to fraction form
    6,819.79/10,225.13 = 5,505.16/x
  3. Step 3: Cross multiply
    6,819.79x = 10,225.13 × 5,505.16
  4. Step 4: Simplify right side
    6,819.79x = 56,290,923.58
  5. Step 5: Solve for x
    x = 56,290,923.58/6,819.79
  6. Step 6: Final answer
    x = 8,254.06

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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.