Home / 13,134.64-18,104.34-9,148.82

Finding the Fourth Proportional to 13,134.64, 18,104.34 and 9,148.82

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Solution

The fourth proportional to 13,134.64, 18,104.34 and 9,148.82 is: 12,610.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.64 : 18,104.34 = 9,148.82 : x
  2. Step 2: Convert to fraction form
    13,134.64/18,104.34 = 9,148.82/x
  3. Step 3: Cross multiply
    13,134.64x = 18,104.34 × 9,148.82
  4. Step 4: Simplify right side
    13,134.64x = 165,633,347.88
  5. Step 5: Solve for x
    x = 165,633,347.88/13,134.64
  6. Step 6: Final answer
    x = 12,610.42

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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.