Home / 13,240.89-18,272.76-7,273.12

Finding the Fourth Proportional to 13,240.89, 18,272.76 and 7,273.12

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Solution

The fourth proportional to 13,240.89, 18,272.76 and 7,273.12 is: 10,037.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.89 : 18,272.76 = 7,273.12 : x
  2. Step 2: Convert to fraction form
    13,240.89/18,272.76 = 7,273.12/x
  3. Step 3: Cross multiply
    13,240.89x = 18,272.76 × 7,273.12
  4. Step 4: Simplify right side
    13,240.89x = 132,899,976.21
  5. Step 5: Solve for x
    x = 132,899,976.21/13,240.89
  6. Step 6: Final answer
    x = 10,037.09

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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.