Home / 13,342.35-18,412.32-7,374.42

Finding the Fourth Proportional to 13,342.35, 18,412.32 and 7,374.42

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Solution

The fourth proportional to 13,342.35, 18,412.32 and 7,374.42 is: 10,176.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.35 : 18,412.32 = 7,374.42 : x
  2. Step 2: Convert to fraction form
    13,342.35/18,412.32 = 7,374.42/x
  3. Step 3: Cross multiply
    13,342.35x = 18,412.32 × 7,374.42
  4. Step 4: Simplify right side
    13,342.35x = 135,780,180.85
  5. Step 5: Solve for x
    x = 135,780,180.85/13,342.35
  6. Step 6: Final answer
    x = 10,176.63

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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.