Home / 14,629.86-20,187.09-8,661.78

Finding the Fourth Proportional to 14,629.86, 20,187.09 and 8,661.78

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Solution

The fourth proportional to 14,629.86, 20,187.09 and 8,661.78 is: 11,952.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.86 : 20,187.09 = 8,661.78 : x
  2. Step 2: Convert to fraction form
    14,629.86/20,187.09 = 8,661.78/x
  3. Step 3: Cross multiply
    14,629.86x = 20,187.09 × 8,661.78
  4. Step 4: Simplify right side
    14,629.86x = 174,856,132.42
  5. Step 5: Solve for x
    x = 174,856,132.42/14,629.86
  6. Step 6: Final answer
    x = 11,952.00

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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.