Home / 16,728.21-23,085.60-9,175.17

Finding the Fourth Proportional to 16,728.21, 23,085.60 and 9,175.17

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Solution

The fourth proportional to 16,728.21, 23,085.60 and 9,175.17 is: 12,662.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.21 : 23,085.60 = 9,175.17 : x
  2. Step 2: Convert to fraction form
    16,728.21/23,085.60 = 9,175.17/x
  3. Step 3: Cross multiply
    16,728.21x = 23,085.60 × 9,175.17
  4. Step 4: Simplify right side
    16,728.21x = 211,814,304.55
  5. Step 5: Solve for x
    x = 211,814,304.55/16,728.21
  6. Step 6: Final answer
    x = 12,662.10

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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.