Home / 13,217.48-19,819.26-6,980.84

Finding the Fourth Proportional to 13,217.48, 19,819.26 and 6,980.84

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Solution

The fourth proportional to 13,217.48, 19,819.26 and 6,980.84 is: 10,467.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.48 : 19,819.26 = 6,980.84 : x
  2. Step 2: Convert to fraction form
    13,217.48/19,819.26 = 6,980.84/x
  3. Step 3: Cross multiply
    13,217.48x = 19,819.26 × 6,980.84
  4. Step 4: Simplify right side
    13,217.48x = 138,355,082.98
  5. Step 5: Solve for x
    x = 138,355,082.98/13,217.48
  6. Step 6: Final answer
    x = 10,467.58

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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.