Home / 15,334.54-21,156.41-9,963.73

Finding the Fourth Proportional to 15,334.54, 21,156.41 and 9,963.73

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Solution

The fourth proportional to 15,334.54, 21,156.41 and 9,963.73 is: 13,746.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.54 : 21,156.41 = 9,963.73 : x
  2. Step 2: Convert to fraction form
    15,334.54/21,156.41 = 9,963.73/x
  3. Step 3: Cross multiply
    15,334.54x = 21,156.41 × 9,963.73
  4. Step 4: Simplify right side
    15,334.54x = 210,796,757.01
  5. Step 5: Solve for x
    x = 210,796,757.01/15,334.54
  6. Step 6: Final answer
    x = 13,746.53

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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.