Home / 16,812.36-23,179.37-13,776.18

Finding the Fourth Proportional to 16,812.36, 23,179.37 and 13,776.18

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Solution

The fourth proportional to 16,812.36, 23,179.37 and 13,776.18 is: 18,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.36 : 23,179.37 = 13,776.18 : x
  2. Step 2: Convert to fraction form
    16,812.36/23,179.37 = 13,776.18/x
  3. Step 3: Cross multiply
    16,812.36x = 23,179.37 × 13,776.18
  4. Step 4: Simplify right side
    16,812.36x = 319,323,104.53
  5. Step 5: Solve for x
    x = 319,323,104.53/16,812.36
  6. Step 6: Final answer
    x = 18,993.35

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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.