Home / 14,147.83-21,224.79-4,287.88

Finding the Fourth Proportional to 14,147.83, 21,224.79 and 4,287.88

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Solution

The fourth proportional to 14,147.83, 21,224.79 and 4,287.88 is: 6,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.83 : 21,224.79 = 4,287.88 : x
  2. Step 2: Convert to fraction form
    14,147.83/21,224.79 = 4,287.88/x
  3. Step 3: Cross multiply
    14,147.83x = 21,224.79 × 4,287.88
  4. Step 4: Simplify right side
    14,147.83x = 91,009,352.55
  5. Step 5: Solve for x
    x = 91,009,352.55/14,147.83
  6. Step 6: Final answer
    x = 6,432.74

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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.