Home / 18,185.96-25,088.46-11,111.06

Finding the Fourth Proportional to 18,185.96, 25,088.46 and 11,111.06

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Solution

The fourth proportional to 18,185.96, 25,088.46 and 11,111.06 is: 15,328.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.96 : 25,088.46 = 11,111.06 : x
  2. Step 2: Convert to fraction form
    18,185.96/25,088.46 = 11,111.06/x
  3. Step 3: Cross multiply
    18,185.96x = 25,088.46 × 11,111.06
  4. Step 4: Simplify right side
    18,185.96x = 278,759,384.37
  5. Step 5: Solve for x
    x = 278,759,384.37/18,185.96
  6. Step 6: Final answer
    x = 15,328.27

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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.