Home / 12,090.99-16,684.43-6,784.77

Finding the Fourth Proportional to 12,090.99, 16,684.43 and 6,784.77

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Solution

The fourth proportional to 12,090.99, 16,684.43 and 6,784.77 is: 9,362.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.99 : 16,684.43 = 6,784.77 : x
  2. Step 2: Convert to fraction form
    12,090.99/16,684.43 = 6,784.77/x
  3. Step 3: Cross multiply
    12,090.99x = 16,684.43 × 6,784.77
  4. Step 4: Simplify right side
    12,090.99x = 113,199,986.21
  5. Step 5: Solve for x
    x = 113,199,986.21/12,090.99
  6. Step 6: Final answer
    x = 9,362.34

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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.