Home / 15,619.92-21,546.66-9,647.34

Finding the Fourth Proportional to 15,619.92, 21,546.66 and 9,647.34

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Solution

The fourth proportional to 15,619.92, 21,546.66 and 9,647.34 is: 13,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.92 : 21,546.66 = 9,647.34 : x
  2. Step 2: Convert to fraction form
    15,619.92/21,546.66 = 9,647.34/x
  3. Step 3: Cross multiply
    15,619.92x = 21,546.66 × 9,647.34
  4. Step 4: Simplify right side
    15,619.92x = 207,867,954.88
  5. Step 5: Solve for x
    x = 207,867,954.88/15,619.92
  6. Step 6: Final answer
    x = 13,307.88

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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.