Home / 13,654.46-18,846.71-8,353.72

Finding the Fourth Proportional to 13,654.46, 18,846.71 and 8,353.72

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Solution

The fourth proportional to 13,654.46, 18,846.71 and 8,353.72 is: 11,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.46 : 18,846.71 = 8,353.72 : x
  2. Step 2: Convert to fraction form
    13,654.46/18,846.71 = 8,353.72/x
  3. Step 3: Cross multiply
    13,654.46x = 18,846.71 × 8,353.72
  4. Step 4: Simplify right side
    13,654.46x = 157,440,138.26
  5. Step 5: Solve for x
    x = 157,440,138.26/13,654.46
  6. Step 6: Final answer
    x = 11,530.31

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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.