Home / 12,412.19-17,126.90-7,374.54

Finding the Fourth Proportional to 12,412.19, 17,126.90 and 7,374.54

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Solution

The fourth proportional to 12,412.19, 17,126.90 and 7,374.54 is: 10,175.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.19 : 17,126.90 = 7,374.54 : x
  2. Step 2: Convert to fraction form
    12,412.19/17,126.90 = 7,374.54/x
  3. Step 3: Cross multiply
    12,412.19x = 17,126.90 × 7,374.54
  4. Step 4: Simplify right side
    12,412.19x = 126,303,027.56
  5. Step 5: Solve for x
    x = 126,303,027.56/12,412.19
  6. Step 6: Final answer
    x = 10,175.73

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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.