Home / 18,971.58-26,181.63-10,907.85

Finding the Fourth Proportional to 18,971.58, 26,181.63 and 10,907.85

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Solution

The fourth proportional to 18,971.58, 26,181.63 and 10,907.85 is: 15,053.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.58 : 26,181.63 = 10,907.85 : x
  2. Step 2: Convert to fraction form
    18,971.58/26,181.63 = 10,907.85/x
  3. Step 3: Cross multiply
    18,971.58x = 26,181.63 × 10,907.85
  4. Step 4: Simplify right side
    18,971.58x = 285,585,292.80
  5. Step 5: Solve for x
    x = 285,585,292.80/18,971.58
  6. Step 6: Final answer
    x = 15,053.32

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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.