Home / 13,579.27-18,739.94-7,610.90

Finding the Fourth Proportional to 13,579.27, 18,739.94 and 7,610.90

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Solution

The fourth proportional to 13,579.27, 18,739.94 and 7,610.90 is: 10,503.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.27 : 18,739.94 = 7,610.90 : x
  2. Step 2: Convert to fraction form
    13,579.27/18,739.94 = 7,610.90/x
  3. Step 3: Cross multiply
    13,579.27x = 18,739.94 × 7,610.90
  4. Step 4: Simplify right side
    13,579.27x = 142,627,677.59
  5. Step 5: Solve for x
    x = 142,627,677.59/13,579.27
  6. Step 6: Final answer
    x = 10,503.34

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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.