Home / 14,238.53-21,359.83-4,378.64

Finding the Fourth Proportional to 14,238.53, 21,359.83 and 4,378.64

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Solution

The fourth proportional to 14,238.53, 21,359.83 and 4,378.64 is: 6,568.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,238.53 : 21,359.83 = 4,378.64 : x
  2. Step 2: Convert to fraction form
    14,238.53/21,359.83 = 4,378.64/x
  3. Step 3: Cross multiply
    14,238.53x = 21,359.83 × 4,378.64
  4. Step 4: Simplify right side
    14,238.53x = 93,526,899.23
  5. Step 5: Solve for x
    x = 93,526,899.23/14,238.53
  6. Step 6: Final answer
    x = 6,568.58

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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.