Home / 13,631.76-20,450.01-5,316.30

Finding the Fourth Proportional to 13,631.76, 20,450.01 and 5,316.30

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Solution

The fourth proportional to 13,631.76, 20,450.01 and 5,316.30 is: 7,975.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.76 : 20,450.01 = 5,316.30 : x
  2. Step 2: Convert to fraction form
    13,631.76/20,450.01 = 5,316.30/x
  3. Step 3: Cross multiply
    13,631.76x = 20,450.01 × 5,316.30
  4. Step 4: Simplify right side
    13,631.76x = 108,718,388.16
  5. Step 5: Solve for x
    x = 108,718,388.16/13,631.76
  6. Step 6: Final answer
    x = 7,975.37

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1.5x scale

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.