Home / 13,254.57-18,290.39-7,286.49

Finding the Fourth Proportional to 13,254.57, 18,290.39 and 7,286.49

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Solution

The fourth proportional to 13,254.57, 18,290.39 and 7,286.49 is: 10,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.57 : 18,290.39 = 7,286.49 : x
  2. Step 2: Convert to fraction form
    13,254.57/18,290.39 = 7,286.49/x
  3. Step 3: Cross multiply
    13,254.57x = 18,290.39 × 7,286.49
  4. Step 4: Simplify right side
    13,254.57x = 133,272,707.40
  5. Step 5: Solve for x
    x = 133,272,707.40/13,254.57
  6. Step 6: Final answer
    x = 10,054.85

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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.