Home / 6,821.10-10,231.65-5,727.60

Finding the Fourth Proportional to 6,821.10, 10,231.65 and 5,727.60

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Solution

The fourth proportional to 6,821.10, 10,231.65 and 5,727.60 is: 8,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,821.10 : 10,231.65 = 5,727.60 : x
  2. Step 2: Convert to fraction form
    6,821.10/10,231.65 = 5,727.60/x
  3. Step 3: Cross multiply
    6,821.10x = 10,231.65 × 5,727.60
  4. Step 4: Simplify right side
    6,821.10x = 58,602,798.54
  5. Step 5: Solve for x
    x = 58,602,798.54/6,821.10
  6. Step 6: Final answer
    x = 8,591.40

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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.