Home / 16,682.12-23,021.64-9,128.94

Finding the Fourth Proportional to 16,682.12, 23,021.64 and 9,128.94

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Solution

The fourth proportional to 16,682.12, 23,021.64 and 9,128.94 is: 12,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,682.12 : 23,021.64 = 9,128.94 : x
  2. Step 2: Convert to fraction form
    16,682.12/23,021.64 = 9,128.94/x
  3. Step 3: Cross multiply
    16,682.12x = 23,021.64 × 9,128.94
  4. Step 4: Simplify right side
    16,682.12x = 210,163,170.26
  5. Step 5: Solve for x
    x = 210,163,170.26/16,682.12
  6. Step 6: Final answer
    x = 12,598.11

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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.