Home / 12,740.64-19,104.56-4,418.42

Finding the Fourth Proportional to 12,740.64, 19,104.56 and 4,418.42

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Solution

The fourth proportional to 12,740.64, 19,104.56 and 4,418.42 is: 6,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.64 : 19,104.56 = 4,418.42 : x
  2. Step 2: Convert to fraction form
    12,740.64/19,104.56 = 4,418.42/x
  3. Step 3: Cross multiply
    12,740.64x = 19,104.56 × 4,418.42
  4. Step 4: Simplify right side
    12,740.64x = 84,412,016.16
  5. Step 5: Solve for x
    x = 84,412,016.16/12,740.64
  6. Step 6: Final answer
    x = 6,625.41

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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.