Home / 19,792.40-29,674.20-8,099.60

Finding the Fourth Proportional to 19,792.40, 29,674.20 and 8,099.60

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Solution

The fourth proportional to 19,792.40, 29,674.20 and 8,099.60 is: 12,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.40 : 29,674.20 = 8,099.60 : x
  2. Step 2: Convert to fraction form
    19,792.40/29,674.20 = 8,099.60/x
  3. Step 3: Cross multiply
    19,792.40x = 29,674.20 × 8,099.60
  4. Step 4: Simplify right side
    19,792.40x = 240,349,150.32
  5. Step 5: Solve for x
    x = 240,349,150.32/19,792.40
  6. Step 6: Final answer
    x = 12,143.51

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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.