Home / 14,629.12-20,186.72-8,255.13

Finding the Fourth Proportional to 14,629.12, 20,186.72 and 8,255.13

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Solution

The fourth proportional to 14,629.12, 20,186.72 and 8,255.13 is: 11,391.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.12 : 20,186.72 = 8,255.13 : x
  2. Step 2: Convert to fraction form
    14,629.12/20,186.72 = 8,255.13/x
  3. Step 3: Cross multiply
    14,629.12x = 20,186.72 × 8,255.13
  4. Step 4: Simplify right side
    14,629.12x = 166,644,025.40
  5. Step 5: Solve for x
    x = 166,644,025.40/14,629.12
  6. Step 6: Final answer
    x = 11,391.25

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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.