Home / 15,546.92-21,458.21-9,880.56

Finding the Fourth Proportional to 15,546.92, 21,458.21 and 9,880.56

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Solution

The fourth proportional to 15,546.92, 21,458.21 and 9,880.56 is: 13,637.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,546.92 : 21,458.21 = 9,880.56 : x
  2. Step 2: Convert to fraction form
    15,546.92/21,458.21 = 9,880.56/x
  3. Step 3: Cross multiply
    15,546.92x = 21,458.21 × 9,880.56
  4. Step 4: Simplify right side
    15,546.92x = 212,019,236.57
  5. Step 5: Solve for x
    x = 212,019,236.57/15,546.92
  6. Step 6: Final answer
    x = 13,637.38

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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.