Home / 11,131.03-15,355.60-6,412.58

Finding the Fourth Proportional to 11,131.03, 15,355.60 and 6,412.58

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Solution

The fourth proportional to 11,131.03, 15,355.60 and 6,412.58 is: 8,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.03 : 15,355.60 = 6,412.58 : x
  2. Step 2: Convert to fraction form
    11,131.03/15,355.60 = 6,412.58/x
  3. Step 3: Cross multiply
    11,131.03x = 15,355.60 × 6,412.58
  4. Step 4: Simplify right side
    11,131.03x = 98,469,013.45
  5. Step 5: Solve for x
    x = 98,469,013.45/11,131.03
  6. Step 6: Final answer
    x = 8,846.35

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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.