Home / 7,759.18-11,639.58-4,472.20

Finding the Fourth Proportional to 7,759.18, 11,639.58 and 4,472.20

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Solution

The fourth proportional to 7,759.18, 11,639.58 and 4,472.20 is: 6,708.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.18 : 11,639.58 = 4,472.20 : x
  2. Step 2: Convert to fraction form
    7,759.18/11,639.58 = 4,472.20/x
  3. Step 3: Cross multiply
    7,759.18x = 11,639.58 × 4,472.20
  4. Step 4: Simplify right side
    7,759.18x = 52,054,529.68
  5. Step 5: Solve for x
    x = 52,054,529.68/7,759.18
  6. Step 6: Final answer
    x = 6,708.77

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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.