Home / 13,242.29-18,273.46-7,274.21

Finding the Fourth Proportional to 13,242.29, 18,273.46 and 7,274.21

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Solution

The fourth proportional to 13,242.29, 18,273.46 and 7,274.21 is: 10,037.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.29 : 18,273.46 = 7,274.21 : x
  2. Step 2: Convert to fraction form
    13,242.29/18,273.46 = 7,274.21/x
  3. Step 3: Cross multiply
    13,242.29x = 18,273.46 × 7,274.21
  4. Step 4: Simplify right side
    13,242.29x = 132,924,944.44
  5. Step 5: Solve for x
    x = 132,924,944.44/13,242.29
  6. Step 6: Final answer
    x = 10,037.91

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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.