Home / 8,213.79-12,320.42-2,370.99

Finding the Fourth Proportional to 8,213.79, 12,320.42 and 2,370.99

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Solution

The fourth proportional to 8,213.79, 12,320.42 and 2,370.99 is: 3,556.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.79 : 12,320.42 = 2,370.99 : x
  2. Step 2: Convert to fraction form
    8,213.79/12,320.42 = 2,370.99/x
  3. Step 3: Cross multiply
    8,213.79x = 12,320.42 × 2,370.99
  4. Step 4: Simplify right side
    8,213.79x = 29,211,580.76
  5. Step 5: Solve for x
    x = 29,211,580.76/8,213.79
  6. Step 6: Final answer
    x = 3,556.41

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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.