Home / 14,287.08-21,435.66-6,388.86

Finding the Fourth Proportional to 14,287.08, 21,435.66 and 6,388.86

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Solution

The fourth proportional to 14,287.08, 21,435.66 and 6,388.86 is: 9,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.08 : 21,435.66 = 6,388.86 : x
  2. Step 2: Convert to fraction form
    14,287.08/21,435.66 = 6,388.86/x
  3. Step 3: Cross multiply
    14,287.08x = 21,435.66 × 6,388.86
  4. Step 4: Simplify right side
    14,287.08x = 136,949,430.75
  5. Step 5: Solve for x
    x = 136,949,430.75/14,287.08
  6. Step 6: Final answer
    x = 9,585.54

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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.