Home / 8,317.95-11,480.70-5,485.83

Finding the Fourth Proportional to 8,317.95, 11,480.70 and 5,485.83

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Solution

The fourth proportional to 8,317.95, 11,480.70 and 5,485.83 is: 7,571.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,317.95 : 11,480.70 = 5,485.83 : x
  2. Step 2: Convert to fraction form
    8,317.95/11,480.70 = 5,485.83/x
  3. Step 3: Cross multiply
    8,317.95x = 11,480.70 × 5,485.83
  4. Step 4: Simplify right side
    8,317.95x = 62,981,168.48
  5. Step 5: Solve for x
    x = 62,981,168.48/8,317.95
  6. Step 6: Final answer
    x = 7,571.72

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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.