Home / 13,242.05-18,273.29-7,272.56

Finding the Fourth Proportional to 13,242.05, 18,273.29 and 7,272.56

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Solution

The fourth proportional to 13,242.05, 18,273.29 and 7,272.56 is: 10,035.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.05 : 18,273.29 = 7,272.56 : x
  2. Step 2: Convert to fraction form
    13,242.05/18,273.29 = 7,272.56/x
  3. Step 3: Cross multiply
    13,242.05x = 18,273.29 × 7,272.56
  4. Step 4: Simplify right side
    13,242.05x = 132,893,470.19
  5. Step 5: Solve for x
    x = 132,893,470.19/13,242.05
  6. Step 6: Final answer
    x = 10,035.72

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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.