Home / 14,825.80-20,459.99-8,111.71

Finding the Fourth Proportional to 14,825.80, 20,459.99 and 8,111.71

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Solution

The fourth proportional to 14,825.80, 20,459.99 and 8,111.71 is: 11,194.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,825.80 : 20,459.99 = 8,111.71 : x
  2. Step 2: Convert to fraction form
    14,825.80/20,459.99 = 8,111.71/x
  3. Step 3: Cross multiply
    14,825.80x = 20,459.99 × 8,111.71
  4. Step 4: Simplify right side
    14,825.80x = 165,965,505.48
  5. Step 5: Solve for x
    x = 165,965,505.48/14,825.80
  6. Step 6: Final answer
    x = 11,194.37

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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.