Home / 16,720.96-25,081.92-9,321.28

Finding the Fourth Proportional to 16,720.96, 25,081.92 and 9,321.28

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Solution

The fourth proportional to 16,720.96, 25,081.92 and 9,321.28 is: 13,982.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.96 : 25,081.92 = 9,321.28 : x
  2. Step 2: Convert to fraction form
    16,720.96/25,081.92 = 9,321.28/x
  3. Step 3: Cross multiply
    16,720.96x = 25,081.92 × 9,321.28
  4. Step 4: Simplify right side
    16,720.96x = 233,795,599.26
  5. Step 5: Solve for x
    x = 233,795,599.26/16,720.96
  6. Step 6: Final answer
    x = 13,982.19

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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.