Home / 13,102.86-18,083.54-7,439.37

Finding the Fourth Proportional to 13,102.86, 18,083.54 and 7,439.37

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Solution

The fourth proportional to 13,102.86, 18,083.54 and 7,439.37 is: 10,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.86 : 18,083.54 = 7,439.37 : x
  2. Step 2: Convert to fraction form
    13,102.86/18,083.54 = 7,439.37/x
  3. Step 3: Cross multiply
    13,102.86x = 18,083.54 × 7,439.37
  4. Step 4: Simplify right side
    13,102.86x = 134,530,208.78
  5. Step 5: Solve for x
    x = 134,530,208.78/13,102.86
  6. Step 6: Final answer
    x = 10,267.24

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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.