Home / 13,146.52-18,141.40-7,480.48

Finding the Fourth Proportional to 13,146.52, 18,141.40 and 7,480.48

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Solution

The fourth proportional to 13,146.52, 18,141.40 and 7,480.48 is: 10,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.52 : 18,141.40 = 7,480.48 : x
  2. Step 2: Convert to fraction form
    13,146.52/18,141.40 = 7,480.48/x
  3. Step 3: Cross multiply
    13,146.52x = 18,141.40 × 7,480.48
  4. Step 4: Simplify right side
    13,146.52x = 135,706,379.87
  5. Step 5: Solve for x
    x = 135,706,379.87/13,146.52
  6. Step 6: Final answer
    x = 10,322.61

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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.