Home / 19,408.97-29,119.61-6,928.72

Finding the Fourth Proportional to 19,408.97, 29,119.61 and 6,928.72

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Solution

The fourth proportional to 19,408.97, 29,119.61 and 6,928.72 is: 10,395.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,408.97 : 29,119.61 = 6,928.72 : x
  2. Step 2: Convert to fraction form
    19,408.97/29,119.61 = 6,928.72/x
  3. Step 3: Cross multiply
    19,408.97x = 29,119.61 × 6,928.72
  4. Step 4: Simplify right side
    19,408.97x = 201,761,597.34
  5. Step 5: Solve for x
    x = 201,761,597.34/19,408.97
  6. Step 6: Final answer
    x = 10,395.28

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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.