Home / 14,190.28-19,579.72-7,901.44

Finding the Fourth Proportional to 14,190.28, 19,579.72 and 7,901.44

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Solution

The fourth proportional to 14,190.28, 19,579.72 and 7,901.44 is: 10,902.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.28 : 19,579.72 = 7,901.44 : x
  2. Step 2: Convert to fraction form
    14,190.28/19,579.72 = 7,901.44/x
  3. Step 3: Cross multiply
    14,190.28x = 19,579.72 × 7,901.44
  4. Step 4: Simplify right side
    14,190.28x = 154,707,982.80
  5. Step 5: Solve for x
    x = 154,707,982.80/14,190.28
  6. Step 6: Final answer
    x = 10,902.39

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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.