Home / 16,696.64-23,021.81-13,328.66

Finding the Fourth Proportional to 16,696.64, 23,021.81 and 13,328.66

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Solution

The fourth proportional to 16,696.64, 23,021.81 and 13,328.66 is: 18,377.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,696.64 : 23,021.81 = 13,328.66 : x
  2. Step 2: Convert to fraction form
    16,696.64/23,021.81 = 13,328.66/x
  3. Step 3: Cross multiply
    16,696.64x = 23,021.81 × 13,328.66
  4. Step 4: Simplify right side
    16,696.64x = 306,849,696.32
  5. Step 5: Solve for x
    x = 306,849,696.32/16,696.64
  6. Step 6: Final answer
    x = 18,377.94

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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.