Home / 8,408.49-11,599.82-5,425.28

Finding the Fourth Proportional to 8,408.49, 11,599.82 and 5,425.28

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Solution

The fourth proportional to 8,408.49, 11,599.82 and 5,425.28 is: 7,484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.49 : 11,599.82 = 5,425.28 : x
  2. Step 2: Convert to fraction form
    8,408.49/11,599.82 = 5,425.28/x
  3. Step 3: Cross multiply
    8,408.49x = 11,599.82 × 5,425.28
  4. Step 4: Simplify right side
    8,408.49x = 62,932,186.32
  5. Step 5: Solve for x
    x = 62,932,186.32/8,408.49
  6. Step 6: Final answer
    x = 7,484.36

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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.