Home / 15,192.90-20,963.43-11,551.55

Finding the Fourth Proportional to 15,192.90, 20,963.43 and 11,551.55

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Solution

The fourth proportional to 15,192.90, 20,963.43 and 11,551.55 is: 15,939.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192.90 : 20,963.43 = 11,551.55 : x
  2. Step 2: Convert to fraction form
    15,192.90/20,963.43 = 11,551.55/x
  3. Step 3: Cross multiply
    15,192.90x = 20,963.43 × 11,551.55
  4. Step 4: Simplify right side
    15,192.90x = 242,160,005.00
  5. Step 5: Solve for x
    x = 242,160,005.00/15,192.90
  6. Step 6: Final answer
    x = 15,939.02

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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.