Home / 11,165.58-15,408.36-6,449.76

Finding the Fourth Proportional to 11,165.58, 15,408.36 and 6,449.76

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Solution

The fourth proportional to 11,165.58, 15,408.36 and 6,449.76 is: 8,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.58 : 15,408.36 = 6,449.76 : x
  2. Step 2: Convert to fraction form
    11,165.58/15,408.36 = 6,449.76/x
  3. Step 3: Cross multiply
    11,165.58x = 15,408.36 × 6,449.76
  4. Step 4: Simplify right side
    11,165.58x = 99,380,223.99
  5. Step 5: Solve for x
    x = 99,380,223.99/11,165.58
  6. Step 6: Final answer
    x = 8,900.59

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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.