Home / 14,090.24-21,135.20-7,847.20

Finding the Fourth Proportional to 14,090.24, 21,135.20 and 7,847.20

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Solution

The fourth proportional to 14,090.24, 21,135.20 and 7,847.20 is: 11,770.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.24 : 21,135.20 = 7,847.20 : x
  2. Step 2: Convert to fraction form
    14,090.24/21,135.20 = 7,847.20/x
  3. Step 3: Cross multiply
    14,090.24x = 21,135.20 × 7,847.20
  4. Step 4: Simplify right side
    14,090.24x = 165,852,141.44
  5. Step 5: Solve for x
    x = 165,852,141.44/14,090.24
  6. Step 6: Final answer
    x = 11,770.71

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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.