Home / 13,308.92-18,365.84-7,340.54

Finding the Fourth Proportional to 13,308.92, 18,365.84 and 7,340.54

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Solution

The fourth proportional to 13,308.92, 18,365.84 and 7,340.54 is: 10,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.92 : 18,365.84 = 7,340.54 : x
  2. Step 2: Convert to fraction form
    13,308.92/18,365.84 = 7,340.54/x
  3. Step 3: Cross multiply
    13,308.92x = 18,365.84 × 7,340.54
  4. Step 4: Simplify right side
    13,308.92x = 134,815,185.46
  5. Step 5: Solve for x
    x = 134,815,185.46/13,308.92
  6. Step 6: Final answer
    x = 10,129.68

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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.