Home / 10,997.48-15,165.15-7,644.08

Finding the Fourth Proportional to 10,997.48, 15,165.15 and 7,644.08

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Solution

The fourth proportional to 10,997.48, 15,165.15 and 7,644.08 is: 10,540.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,997.48 : 15,165.15 = 7,644.08 : x
  2. Step 2: Convert to fraction form
    10,997.48/15,165.15 = 7,644.08/x
  3. Step 3: Cross multiply
    10,997.48x = 15,165.15 × 7,644.08
  4. Step 4: Simplify right side
    10,997.48x = 115,923,619.81
  5. Step 5: Solve for x
    x = 115,923,619.81/10,997.48
  6. Step 6: Final answer
    x = 10,540.93

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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.