Home / 7,864.19-11,785.26-4,355.81

Finding the Fourth Proportional to 7,864.19, 11,785.26 and 4,355.81

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Solution

The fourth proportional to 7,864.19, 11,785.26 and 4,355.81 is: 6,527.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.19 : 11,785.26 = 4,355.81 : x
  2. Step 2: Convert to fraction form
    7,864.19/11,785.26 = 4,355.81/x
  3. Step 3: Cross multiply
    7,864.19x = 11,785.26 × 4,355.81
  4. Step 4: Simplify right side
    7,864.19x = 51,334,353.36
  5. Step 5: Solve for x
    x = 51,334,353.36/7,864.19
  6. Step 6: Final answer
    x = 6,527.61

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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.