Home / 14,556.12-20,085.42-8,181.81

Finding the Fourth Proportional to 14,556.12, 20,085.42 and 8,181.81

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Solution

The fourth proportional to 14,556.12, 20,085.42 and 8,181.81 is: 11,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,556.12 : 20,085.42 = 8,181.81 : x
  2. Step 2: Convert to fraction form
    14,556.12/20,085.42 = 8,181.81/x
  3. Step 3: Cross multiply
    14,556.12x = 20,085.42 × 8,181.81
  4. Step 4: Simplify right side
    14,556.12x = 164,335,090.21
  5. Step 5: Solve for x
    x = 164,335,090.21/14,556.12
  6. Step 6: Final answer
    x = 11,289.76

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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.