Home / 12,666.15-18,999.23-11,244.60

Finding the Fourth Proportional to 12,666.15, 18,999.23 and 11,244.60

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Solution

The fourth proportional to 12,666.15, 18,999.23 and 11,244.60 is: 16,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.15 : 18,999.23 = 11,244.60 : x
  2. Step 2: Convert to fraction form
    12,666.15/18,999.23 = 11,244.60/x
  3. Step 3: Cross multiply
    12,666.15x = 18,999.23 × 11,244.60
  4. Step 4: Simplify right side
    12,666.15x = 213,638,685.44
  5. Step 5: Solve for x
    x = 213,638,685.44/12,666.15
  6. Step 6: Final answer
    x = 16,866.90

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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.