Home / 11,981.50-16,533.78-6,676.13

Finding the Fourth Proportional to 11,981.50, 16,533.78 and 6,676.13

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Solution

The fourth proportional to 11,981.50, 16,533.78 and 6,676.13 is: 9,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.50 : 16,533.78 = 6,676.13 : x
  2. Step 2: Convert to fraction form
    11,981.50/16,533.78 = 6,676.13/x
  3. Step 3: Cross multiply
    11,981.50x = 16,533.78 × 6,676.13
  4. Step 4: Simplify right side
    11,981.50x = 110,381,664.67
  5. Step 5: Solve for x
    x = 110,381,664.67/11,981.50
  6. Step 6: Final answer
    x = 9,212.67

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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.