Home / 13,254.42-18,290.68-7,286.07

Finding the Fourth Proportional to 13,254.42, 18,290.68 and 7,286.07

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Solution

The fourth proportional to 13,254.42, 18,290.68 and 7,286.07 is: 10,054.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.42 : 18,290.68 = 7,286.07 : x
  2. Step 2: Convert to fraction form
    13,254.42/18,290.68 = 7,286.07/x
  3. Step 3: Cross multiply
    13,254.42x = 18,290.68 × 7,286.07
  4. Step 4: Simplify right side
    13,254.42x = 133,267,174.83
  5. Step 5: Solve for x
    x = 133,267,174.83/13,254.42
  6. Step 6: Final answer
    x = 10,054.55

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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.