Home / 13,993.10-19,311.36-7,705.48

Finding the Fourth Proportional to 13,993.10, 19,311.36 and 7,705.48

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Solution

The fourth proportional to 13,993.10, 19,311.36 and 7,705.48 is: 10,634.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.10 : 19,311.36 = 7,705.48 : x
  2. Step 2: Convert to fraction form
    13,993.10/19,311.36 = 7,705.48/x
  3. Step 3: Cross multiply
    13,993.10x = 19,311.36 × 7,705.48
  4. Step 4: Simplify right side
    13,993.10x = 148,803,249.97
  5. Step 5: Solve for x
    x = 148,803,249.97/13,993.10
  6. Step 6: Final answer
    x = 10,634.04

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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.