Home / 13,748.64-20,623.91-4,389.36

Finding the Fourth Proportional to 13,748.64, 20,623.91 and 4,389.36

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Solution

The fourth proportional to 13,748.64, 20,623.91 and 4,389.36 is: 6,584.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.64 : 20,623.91 = 4,389.36 : x
  2. Step 2: Convert to fraction form
    13,748.64/20,623.91 = 4,389.36/x
  3. Step 3: Cross multiply
    13,748.64x = 20,623.91 × 4,389.36
  4. Step 4: Simplify right side
    13,748.64x = 90,525,743.65
  5. Step 5: Solve for x
    x = 90,525,743.65/13,748.64
  6. Step 6: Final answer
    x = 6,584.34

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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.