Home / 8,529.05-11,768.38-4,991.58

Finding the Fourth Proportional to 8,529.05, 11,768.38 and 4,991.58

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Solution

The fourth proportional to 8,529.05, 11,768.38 and 4,991.58 is: 6,887.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.05 : 11,768.38 = 4,991.58 : x
  2. Step 2: Convert to fraction form
    8,529.05/11,768.38 = 4,991.58/x
  3. Step 3: Cross multiply
    8,529.05x = 11,768.38 × 4,991.58
  4. Step 4: Simplify right side
    8,529.05x = 58,742,797.76
  5. Step 5: Solve for x
    x = 58,742,797.76/8,529.05
  6. Step 6: Final answer
    x = 6,887.38

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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.