Home / 8,285.37-11,420.84-5,628.17

Finding the Fourth Proportional to 8,285.37, 11,420.84 and 5,628.17

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Solution

The fourth proportional to 8,285.37, 11,420.84 and 5,628.17 is: 7,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.37 : 11,420.84 = 5,628.17 : x
  2. Step 2: Convert to fraction form
    8,285.37/11,420.84 = 5,628.17/x
  3. Step 3: Cross multiply
    8,285.37x = 11,420.84 × 5,628.17
  4. Step 4: Simplify right side
    8,285.37x = 64,278,343.82
  5. Step 5: Solve for x
    x = 64,278,343.82/8,285.37
  6. Step 6: Final answer
    x = 7,758.05

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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.