Home / 8,263.85-11,399.88-5,276.54

Finding the Fourth Proportional to 8,263.85, 11,399.88 and 5,276.54

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Solution

The fourth proportional to 8,263.85, 11,399.88 and 5,276.54 is: 7,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263.85 : 11,399.88 = 5,276.54 : x
  2. Step 2: Convert to fraction form
    8,263.85/11,399.88 = 5,276.54/x
  3. Step 3: Cross multiply
    8,263.85x = 11,399.88 × 5,276.54
  4. Step 4: Simplify right side
    8,263.85x = 60,151,951.31
  5. Step 5: Solve for x
    x = 60,151,951.31/8,263.85
  6. Step 6: Final answer
    x = 7,278.93

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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.