Home / 11,190.94-15,439.03-6,408.29

Finding the Fourth Proportional to 11,190.94, 15,439.03 and 6,408.29

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Solution

The fourth proportional to 11,190.94, 15,439.03 and 6,408.29 is: 8,840.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.94 : 15,439.03 = 6,408.29 : x
  2. Step 2: Convert to fraction form
    11,190.94/15,439.03 = 6,408.29/x
  3. Step 3: Cross multiply
    11,190.94x = 15,439.03 × 6,408.29
  4. Step 4: Simplify right side
    11,190.94x = 98,937,804.14
  5. Step 5: Solve for x
    x = 98,937,804.14/11,190.94
  6. Step 6: Final answer
    x = 8,840.89

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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.