Home / 16,728.90-23,085.90-9,175.29

Finding the Fourth Proportional to 16,728.90, 23,085.90 and 9,175.29

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Solution

The fourth proportional to 16,728.90, 23,085.90 and 9,175.29 is: 12,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.90 : 23,085.90 = 9,175.29 : x
  2. Step 2: Convert to fraction form
    16,728.90/23,085.90 = 9,175.29/x
  3. Step 3: Cross multiply
    16,728.90x = 23,085.90 × 9,175.29
  4. Step 4: Simplify right side
    16,728.90x = 211,819,827.41
  5. Step 5: Solve for x
    x = 211,819,827.41/16,728.90
  6. Step 6: Final answer
    x = 12,661.91

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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.