Home / 12,021.21-16,580.90-11,029.77

Finding the Fourth Proportional to 12,021.21, 16,580.90 and 11,029.77

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Solution

The fourth proportional to 12,021.21, 16,580.90 and 11,029.77 is: 15,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.21 : 16,580.90 = 11,029.77 : x
  2. Step 2: Convert to fraction form
    12,021.21/16,580.90 = 11,029.77/x
  3. Step 3: Cross multiply
    12,021.21x = 16,580.90 × 11,029.77
  4. Step 4: Simplify right side
    12,021.21x = 182,883,458.24
  5. Step 5: Solve for x
    x = 182,883,458.24/12,021.21
  6. Step 6: Final answer
    x = 15,213.40

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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.