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Finding the Fourth Proportional to 15,156.01, 20,914.36 and 8,441.29

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Solution

The fourth proportional to 15,156.01, 20,914.36 and 8,441.29 is: 11,648.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156.01 : 20,914.36 = 8,441.29 : x
  2. Step 2: Convert to fraction form
    15,156.01/20,914.36 = 8,441.29/x
  3. Step 3: Cross multiply
    15,156.01x = 20,914.36 × 8,441.29
  4. Step 4: Simplify right side
    15,156.01x = 176,544,177.92
  5. Step 5: Solve for x
    x = 176,544,177.92/15,156.01
  6. Step 6: Final answer
    x = 11,648.46

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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.