Home / 11,712.15-16,162.58-6,676.65

Finding the Fourth Proportional to 11,712.15, 16,162.58 and 6,676.65

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Solution

The fourth proportional to 11,712.15, 16,162.58 and 6,676.65 is: 9,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.15 : 16,162.58 = 6,676.65 : x
  2. Step 2: Convert to fraction form
    11,712.15/16,162.58 = 6,676.65/x
  3. Step 3: Cross multiply
    11,712.15x = 16,162.58 × 6,676.65
  4. Step 4: Simplify right side
    11,712.15x = 107,911,856.37
  5. Step 5: Solve for x
    x = 107,911,856.37/11,712.15
  6. Step 6: Final answer
    x = 9,213.67

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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.