Home / 14,388.16-19,855.20-8,099.68

Finding the Fourth Proportional to 14,388.16, 19,855.20 and 8,099.68

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Solution

The fourth proportional to 14,388.16, 19,855.20 and 8,099.68 is: 11,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.16 : 19,855.20 = 8,099.68 : x
  2. Step 2: Convert to fraction form
    14,388.16/19,855.20 = 8,099.68/x
  3. Step 3: Cross multiply
    14,388.16x = 19,855.20 × 8,099.68
  4. Step 4: Simplify right side
    14,388.16x = 160,820,766.34
  5. Step 5: Solve for x
    x = 160,820,766.34/14,388.16
  6. Step 6: Final answer
    x = 11,177.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.