Home / 13,392.51-18,481.26-7,342.62

Finding the Fourth Proportional to 13,392.51, 18,481.26 and 7,342.62

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Solution

The fourth proportional to 13,392.51, 18,481.26 and 7,342.62 is: 10,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.51 : 18,481.26 = 7,342.62 : x
  2. Step 2: Convert to fraction form
    13,392.51/18,481.26 = 7,342.62/x
  3. Step 3: Cross multiply
    13,392.51x = 18,481.26 × 7,342.62
  4. Step 4: Simplify right side
    13,392.51x = 135,700,832.59
  5. Step 5: Solve for x
    x = 135,700,832.59/13,392.51
  6. Step 6: Final answer
    x = 10,132.60

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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.