Home / 14,845.24-20,485.56-8,129.53

Finding the Fourth Proportional to 14,845.24, 20,485.56 and 8,129.53

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Solution

The fourth proportional to 14,845.24, 20,485.56 and 8,129.53 is: 11,218.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,845.24 : 20,485.56 = 8,129.53 : x
  2. Step 2: Convert to fraction form
    14,845.24/20,485.56 = 8,129.53/x
  3. Step 3: Cross multiply
    14,845.24x = 20,485.56 × 8,129.53
  4. Step 4: Simplify right side
    14,845.24x = 166,537,984.95
  5. Step 5: Solve for x
    x = 166,537,984.95/14,845.24
  6. Step 6: Final answer
    x = 11,218.27

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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.