Home / 6,899.20-10,359.60-5,257.60

Finding the Fourth Proportional to 6,899.20, 10,359.60 and 5,257.60

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Solution

The fourth proportional to 6,899.20, 10,359.60 and 5,257.60 is: 7,894.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.20 : 10,359.60 = 5,257.60 : x
  2. Step 2: Convert to fraction form
    6,899.20/10,359.60 = 5,257.60/x
  3. Step 3: Cross multiply
    6,899.20x = 10,359.60 × 5,257.60
  4. Step 4: Simplify right side
    6,899.20x = 54,466,632.96
  5. Step 5: Solve for x
    x = 54,466,632.96/6,899.20
  6. Step 6: Final answer
    x = 7,894.63

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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.