Home / 11,165.59-15,408.66-6,449.77

Finding the Fourth Proportional to 11,165.59, 15,408.66 and 6,449.77

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Solution

The fourth proportional to 11,165.59, 15,408.66 and 6,449.77 is: 8,900.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.59 : 15,408.66 = 6,449.77 : x
  2. Step 2: Convert to fraction form
    11,165.59/15,408.66 = 6,449.77/x
  3. Step 3: Cross multiply
    11,165.59x = 15,408.66 × 6,449.77
  4. Step 4: Simplify right side
    11,165.59x = 99,382,313.01
  5. Step 5: Solve for x
    x = 99,382,313.01/11,165.59
  6. Step 6: Final answer
    x = 8,900.77

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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.