Home / 8,435.87-11,640.99-5,079.77

Finding the Fourth Proportional to 8,435.87, 11,640.99 and 5,079.77

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Solution

The fourth proportional to 8,435.87, 11,640.99 and 5,079.77 is: 7,009.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.87 : 11,640.99 = 5,079.77 : x
  2. Step 2: Convert to fraction form
    8,435.87/11,640.99 = 5,079.77/x
  3. Step 3: Cross multiply
    8,435.87x = 11,640.99 × 5,079.77
  4. Step 4: Simplify right side
    8,435.87x = 59,133,599.92
  5. Step 5: Solve for x
    x = 59,133,599.92/8,435.87
  6. Step 6: Final answer
    x = 7,009.78

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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.