Home / 18,639.93-25,714.63-11,081.98

Finding the Fourth Proportional to 18,639.93, 25,714.63 and 11,081.98

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Solution

The fourth proportional to 18,639.93, 25,714.63 and 11,081.98 is: 15,288.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.93 : 25,714.63 = 11,081.98 : x
  2. Step 2: Convert to fraction form
    18,639.93/25,714.63 = 11,081.98/x
  3. Step 3: Cross multiply
    18,639.93x = 25,714.63 × 11,081.98
  4. Step 4: Simplify right side
    18,639.93x = 284,968,886.79
  5. Step 5: Solve for x
    x = 284,968,886.79/18,639.93
  6. Step 6: Final answer
    x = 15,288.09

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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.