Home / 13,751.32-20,628.48-4,389.16

Finding the Fourth Proportional to 13,751.32, 20,628.48 and 4,389.16

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Solution

The fourth proportional to 13,751.32, 20,628.48 and 4,389.16 is: 6,584.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,751.32 : 20,628.48 = 4,389.16 : x
  2. Step 2: Convert to fraction form
    13,751.32/20,628.48 = 4,389.16/x
  3. Step 3: Cross multiply
    13,751.32x = 20,628.48 × 4,389.16
  4. Step 4: Simplify right side
    13,751.32x = 90,541,699.28
  5. Step 5: Solve for x
    x = 90,541,699.28/13,751.32
  6. Step 6: Final answer
    x = 6,584.22

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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.