Home / 16,720.56-23,073.12-9,645.48

Finding the Fourth Proportional to 16,720.56, 23,073.12 and 9,645.48

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Solution

The fourth proportional to 16,720.56, 23,073.12 and 9,645.48 is: 13,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.56 : 23,073.12 = 9,645.48 : x
  2. Step 2: Convert to fraction form
    16,720.56/23,073.12 = 9,645.48/x
  3. Step 3: Cross multiply
    16,720.56x = 23,073.12 × 9,645.48
  4. Step 4: Simplify right side
    16,720.56x = 222,551,317.50
  5. Step 5: Solve for x
    x = 222,551,317.50/16,720.56
  6. Step 6: Final answer
    x = 13,310.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.