Home / 9,408.54-12,983.80-5,631.86

Finding the Fourth Proportional to 9,408.54, 12,983.80 and 5,631.86

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Solution

The fourth proportional to 9,408.54, 12,983.80 and 5,631.86 is: 7,771.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408.54 : 12,983.80 = 5,631.86 : x
  2. Step 2: Convert to fraction form
    9,408.54/12,983.80 = 5,631.86/x
  3. Step 3: Cross multiply
    9,408.54x = 12,983.80 × 5,631.86
  4. Step 4: Simplify right side
    9,408.54x = 73,122,943.87
  5. Step 5: Solve for x
    x = 73,122,943.87/9,408.54
  6. Step 6: Final answer
    x = 7,771.98

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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.