Home / 14,844.88-20,485.16-8,129.21

Finding the Fourth Proportional to 14,844.88, 20,485.16 and 8,129.21

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Solution

The fourth proportional to 14,844.88, 20,485.16 and 8,129.21 is: 11,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,844.88 : 20,485.16 = 8,129.21 : x
  2. Step 2: Convert to fraction form
    14,844.88/20,485.16 = 8,129.21/x
  3. Step 3: Cross multiply
    14,844.88x = 20,485.16 × 8,129.21
  4. Step 4: Simplify right side
    14,844.88x = 166,528,162.24
  5. Step 5: Solve for x
    x = 166,528,162.24/14,844.88
  6. Step 6: Final answer
    x = 11,217.89

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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.