Home / 13,211.45-19,806.75-6,550.23

Finding the Fourth Proportional to 13,211.45, 19,806.75 and 6,550.23

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Solution

The fourth proportional to 13,211.45, 19,806.75 and 6,550.23 is: 9,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.45 : 19,806.75 = 6,550.23 : x
  2. Step 2: Convert to fraction form
    13,211.45/19,806.75 = 6,550.23/x
  3. Step 3: Cross multiply
    13,211.45x = 19,806.75 × 6,550.23
  4. Step 4: Simplify right side
    13,211.45x = 129,738,768.05
  5. Step 5: Solve for x
    x = 129,738,768.05/13,211.45
  6. Step 6: Final answer
    x = 9,820.18

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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.