Home / 14,588.78-20,131.69-8,621.00

Finding the Fourth Proportional to 14,588.78, 20,131.69 and 8,621.00

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Solution

The fourth proportional to 14,588.78, 20,131.69 and 8,621.00 is: 11,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,588.78 : 20,131.69 = 8,621.00 : x
  2. Step 2: Convert to fraction form
    14,588.78/20,131.69 = 8,621.00/x
  3. Step 3: Cross multiply
    14,588.78x = 20,131.69 × 8,621.00
  4. Step 4: Simplify right side
    14,588.78x = 173,555,268.94
  5. Step 5: Solve for x
    x = 173,555,268.94/14,588.78
  6. Step 6: Final answer
    x = 11,896.49

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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.