Home / 15,880.44-21,905.06-10,222.56

Finding the Fourth Proportional to 15,880.44, 21,905.06 and 10,222.56

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Solution

The fourth proportional to 15,880.44, 21,905.06 and 10,222.56 is: 14,100.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880.44 : 21,905.06 = 10,222.56 : x
  2. Step 2: Convert to fraction form
    15,880.44/21,905.06 = 10,222.56/x
  3. Step 3: Cross multiply
    15,880.44x = 21,905.06 × 10,222.56
  4. Step 4: Simplify right side
    15,880.44x = 223,925,790.15
  5. Step 5: Solve for x
    x = 223,925,790.15/15,880.44
  6. Step 6: Final answer
    x = 14,100.73

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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.