Home / 11,122.56-15,349.08-6,408.36

Finding the Fourth Proportional to 11,122.56, 15,349.08 and 6,408.36

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Solution

The fourth proportional to 11,122.56, 15,349.08 and 6,408.36 is: 8,843.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.56 : 15,349.08 = 6,408.36 : x
  2. Step 2: Convert to fraction form
    11,122.56/15,349.08 = 6,408.36/x
  3. Step 3: Cross multiply
    11,122.56x = 15,349.08 × 6,408.36
  4. Step 4: Simplify right side
    11,122.56x = 98,362,430.31
  5. Step 5: Solve for x
    x = 98,362,430.31/11,122.56
  6. Step 6: Final answer
    x = 8,843.51

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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.