Home / 12,741.60-19,119.84-5,345.41

Finding the Fourth Proportional to 12,741.60, 19,119.84 and 5,345.41

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Solution

The fourth proportional to 12,741.60, 19,119.84 and 5,345.41 is: 8,021.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.60 : 19,119.84 = 5,345.41 : x
  2. Step 2: Convert to fraction form
    12,741.60/19,119.84 = 5,345.41/x
  3. Step 3: Cross multiply
    12,741.60x = 19,119.84 × 5,345.41
  4. Step 4: Simplify right side
    12,741.60x = 102,203,383.93
  5. Step 5: Solve for x
    x = 102,203,383.93/12,741.60
  6. Step 6: Final answer
    x = 8,021.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.