Home / 15,917.25-21,967.83-9,629.67

Finding the Fourth Proportional to 15,917.25, 21,967.83 and 9,629.67

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Solution

The fourth proportional to 15,917.25, 21,967.83 and 9,629.67 is: 13,290.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.25 : 21,967.83 = 9,629.67 : x
  2. Step 2: Convert to fraction form
    15,917.25/21,967.83 = 9,629.67/x
  3. Step 3: Cross multiply
    15,917.25x = 21,967.83 × 9,629.67
  4. Step 4: Simplify right side
    15,917.25x = 211,542,953.52
  5. Step 5: Solve for x
    x = 211,542,953.52/15,917.25
  6. Step 6: Final answer
    x = 13,290.17

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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.