Home / 13,211.05-19,819.16-4,891.14

Finding the Fourth Proportional to 13,211.05, 19,819.16 and 4,891.14

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Solution

The fourth proportional to 13,211.05, 19,819.16 and 4,891.14 is: 7,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.05 : 19,819.16 = 4,891.14 : x
  2. Step 2: Convert to fraction form
    13,211.05/19,819.16 = 4,891.14/x
  3. Step 3: Cross multiply
    13,211.05x = 19,819.16 × 4,891.14
  4. Step 4: Simplify right side
    13,211.05x = 96,938,286.24
  5. Step 5: Solve for x
    x = 96,938,286.24/13,211.05
  6. Step 6: Final answer
    x = 7,337.67

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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.