Home / 13,254.72-18,286.28-8,541.75

Finding the Fourth Proportional to 13,254.72, 18,286.28 and 8,541.75

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Solution

The fourth proportional to 13,254.72, 18,286.28 and 8,541.75 is: 11,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.72 : 18,286.28 = 8,541.75 : x
  2. Step 2: Convert to fraction form
    13,254.72/18,286.28 = 8,541.75/x
  3. Step 3: Cross multiply
    13,254.72x = 18,286.28 × 8,541.75
  4. Step 4: Simplify right side
    13,254.72x = 156,196,789.48
  5. Step 5: Solve for x
    x = 156,196,789.48/13,254.72
  6. Step 6: Final answer
    x = 11,784.24

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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.