Home / 13,410.73-20,115.75-6,395.70

Finding the Fourth Proportional to 13,410.73, 20,115.75 and 6,395.70

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Solution

The fourth proportional to 13,410.73, 20,115.75 and 6,395.70 is: 9,593.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.73 : 20,115.75 = 6,395.70 : x
  2. Step 2: Convert to fraction form
    13,410.73/20,115.75 = 6,395.70/x
  3. Step 3: Cross multiply
    13,410.73x = 20,115.75 × 6,395.70
  4. Step 4: Simplify right side
    13,410.73x = 128,654,302.28
  5. Step 5: Solve for x
    x = 128,654,302.28/13,410.73
  6. Step 6: Final answer
    x = 9,593.39

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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.