Home / 16,696.72-23,013.48-13,328.74

Finding the Fourth Proportional to 16,696.72, 23,013.48 and 13,328.74

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Solution

The fourth proportional to 16,696.72, 23,013.48 and 13,328.74 is: 18,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,696.72 : 23,013.48 = 13,328.74 : x
  2. Step 2: Convert to fraction form
    16,696.72/23,013.48 = 13,328.74/x
  3. Step 3: Cross multiply
    16,696.72x = 23,013.48 × 13,328.74
  4. Step 4: Simplify right side
    16,696.72x = 306,740,691.42
  5. Step 5: Solve for x
    x = 306,740,691.42/16,696.72
  6. Step 6: Final answer
    x = 18,371.31

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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.