Home / 13,240.36-18,272.78-7,273.18

Finding the Fourth Proportional to 13,240.36, 18,272.78 and 7,273.18

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Solution

The fourth proportional to 13,240.36, 18,272.78 and 7,273.18 is: 10,037.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.36 : 18,272.78 = 7,273.18 : x
  2. Step 2: Convert to fraction form
    13,240.36/18,272.78 = 7,273.18/x
  3. Step 3: Cross multiply
    13,240.36x = 18,272.78 × 7,273.18
  4. Step 4: Simplify right side
    13,240.36x = 132,901,181.67
  5. Step 5: Solve for x
    x = 132,901,181.67/13,240.36
  6. Step 6: Final answer
    x = 10,037.58

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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.