Home / 7,855.35-10,840.38-4,318.56

Finding the Fourth Proportional to 7,855.35, 10,840.38 and 4,318.56

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Solution

The fourth proportional to 7,855.35, 10,840.38 and 4,318.56 is: 5,959.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.35 : 10,840.38 = 4,318.56 : x
  2. Step 2: Convert to fraction form
    7,855.35/10,840.38 = 4,318.56/x
  3. Step 3: Cross multiply
    7,855.35x = 10,840.38 × 4,318.56
  4. Step 4: Simplify right side
    7,855.35x = 46,814,831.45
  5. Step 5: Solve for x
    x = 46,814,831.45/7,855.35
  6. Step 6: Final answer
    x = 5,959.61

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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.