Home / 13,240.51-18,273.42-7,272.70

Finding the Fourth Proportional to 13,240.51, 18,273.42 and 7,272.70

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Solution

The fourth proportional to 13,240.51, 18,273.42 and 7,272.70 is: 10,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.51 : 18,273.42 = 7,272.70 : x
  2. Step 2: Convert to fraction form
    13,240.51/18,273.42 = 7,272.70/x
  3. Step 3: Cross multiply
    13,240.51x = 18,273.42 × 7,272.70
  4. Step 4: Simplify right side
    13,240.51x = 132,897,101.63
  5. Step 5: Solve for x
    x = 132,897,101.63/13,240.51
  6. Step 6: Final answer
    x = 10,037.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.