Home / 13,254.15-18,290.76-7,286.43

Finding the Fourth Proportional to 13,254.15, 18,290.76 and 7,286.43

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Solution

The fourth proportional to 13,254.15, 18,290.76 and 7,286.43 is: 10,055.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.15 : 18,290.76 = 7,286.43 : x
  2. Step 2: Convert to fraction form
    13,254.15/18,290.76 = 7,286.43/x
  3. Step 3: Cross multiply
    13,254.15x = 18,290.76 × 7,286.43
  4. Step 4: Simplify right side
    13,254.15x = 133,274,342.39
  5. Step 5: Solve for x
    x = 133,274,342.39/13,254.15
  6. Step 6: Final answer
    x = 10,055.29

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Half scale
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Double scale
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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.