Home / 7,429.87-11,146.73-2,164.76

Finding the Fourth Proportional to 7,429.87, 11,146.73 and 2,164.76

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Solution

The fourth proportional to 7,429.87, 11,146.73 and 2,164.76 is: 3,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.87 : 11,146.73 = 2,164.76 : x
  2. Step 2: Convert to fraction form
    7,429.87/11,146.73 = 2,164.76/x
  3. Step 3: Cross multiply
    7,429.87x = 11,146.73 × 2,164.76
  4. Step 4: Simplify right side
    7,429.87x = 24,129,944.91
  5. Step 5: Solve for x
    x = 24,129,944.91/7,429.87
  6. Step 6: Final answer
    x = 3,247.70

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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.