Home / 11,189.79-16,785.63-3,398.67

Finding the Fourth Proportional to 11,189.79, 16,785.63 and 3,398.67

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Solution

The fourth proportional to 11,189.79, 16,785.63 and 3,398.67 is: 5,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.79 : 16,785.63 = 3,398.67 : x
  2. Step 2: Convert to fraction form
    11,189.79/16,785.63 = 3,398.67/x
  3. Step 3: Cross multiply
    11,189.79x = 16,785.63 × 3,398.67
  4. Step 4: Simplify right side
    11,189.79x = 57,048,817.11
  5. Step 5: Solve for x
    x = 57,048,817.11/11,189.79
  6. Step 6: Final answer
    x = 5,098.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.