Home / 13,254.26-18,291.30-7,286.18

Finding the Fourth Proportional to 13,254.26, 18,291.30 and 7,286.18

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Solution

The fourth proportional to 13,254.26, 18,291.30 and 7,286.18 is: 10,055.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.26 : 18,291.30 = 7,286.18 : x
  2. Step 2: Convert to fraction form
    13,254.26/18,291.30 = 7,286.18/x
  3. Step 3: Cross multiply
    13,254.26x = 18,291.30 × 7,286.18
  4. Step 4: Simplify right side
    13,254.26x = 133,273,704.23
  5. Step 5: Solve for x
    x = 133,273,704.23/13,254.26
  6. Step 6: Final answer
    x = 10,055.16

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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.