Home / 18,585.51-25,647.31-10,087.44

Finding the Fourth Proportional to 18,585.51, 25,647.31 and 10,087.44

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Solution

The fourth proportional to 18,585.51, 25,647.31 and 10,087.44 is: 13,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585.51 : 25,647.31 = 10,087.44 : x
  2. Step 2: Convert to fraction form
    18,585.51/25,647.31 = 10,087.44/x
  3. Step 3: Cross multiply
    18,585.51x = 25,647.31 × 10,087.44
  4. Step 4: Simplify right side
    18,585.51x = 258,715,784.35
  5. Step 5: Solve for x
    x = 258,715,784.35/18,585.51
  6. Step 6: Final answer
    x = 13,920.30

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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.