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Finding the Fourth Proportional to 17,774.40, 26,629.20 and 10,840.80

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Solution

The fourth proportional to 17,774.40, 26,629.20 and 10,840.80 is: 16,241.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,774.40 : 26,629.20 = 10,840.80 : x
  2. Step 2: Convert to fraction form
    17,774.40/26,629.20 = 10,840.80/x
  3. Step 3: Cross multiply
    17,774.40x = 26,629.20 × 10,840.80
  4. Step 4: Simplify right side
    17,774.40x = 288,681,831.36
  5. Step 5: Solve for x
    x = 288,681,831.36/17,774.40
  6. Step 6: Final answer
    x = 16,241.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.