Home / 6,789.90-10,187.07-4,288.20

Finding the Fourth Proportional to 6,789.90, 10,187.07 and 4,288.20

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Solution

The fourth proportional to 6,789.90, 10,187.07 and 4,288.20 is: 6,433.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,789.90 : 10,187.07 = 4,288.20 : x
  2. Step 2: Convert to fraction form
    6,789.90/10,187.07 = 4,288.20/x
  3. Step 3: Cross multiply
    6,789.90x = 10,187.07 × 4,288.20
  4. Step 4: Simplify right side
    6,789.90x = 43,684,193.57
  5. Step 5: Solve for x
    x = 43,684,193.57/6,789.90
  6. Step 6: Final answer
    x = 6,433.70

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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.