Home / 13,251.75-18,286.74-7,283.63

Finding the Fourth Proportional to 13,251.75, 18,286.74 and 7,283.63

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Solution

The fourth proportional to 13,251.75, 18,286.74 and 7,283.63 is: 10,051.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.75 : 18,286.74 = 7,283.63 : x
  2. Step 2: Convert to fraction form
    13,251.75/18,286.74 = 7,283.63/x
  3. Step 3: Cross multiply
    13,251.75x = 18,286.74 × 7,283.63
  4. Step 4: Simplify right side
    13,251.75x = 133,193,821.87
  5. Step 5: Solve for x
    x = 133,193,821.87/13,251.75
  6. Step 6: Final answer
    x = 10,051.03

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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.