Home / 13,541.76-20,321.28-9,048.96

Finding the Fourth Proportional to 13,541.76, 20,321.28 and 9,048.96

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Solution

The fourth proportional to 13,541.76, 20,321.28 and 9,048.96 is: 13,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.76 : 20,321.28 = 9,048.96 : x
  2. Step 2: Convert to fraction form
    13,541.76/20,321.28 = 9,048.96/x
  3. Step 3: Cross multiply
    13,541.76x = 20,321.28 × 9,048.96
  4. Step 4: Simplify right side
    13,541.76x = 183,886,449.87
  5. Step 5: Solve for x
    x = 183,886,449.87/13,541.76
  6. Step 6: Final answer
    x = 13,579.21

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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.