Home / 18,927.98-26,120.54-10,974.83

Finding the Fourth Proportional to 18,927.98, 26,120.54 and 10,974.83

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Solution

The fourth proportional to 18,927.98, 26,120.54 and 10,974.83 is: 15,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.98 : 26,120.54 = 10,974.83 : x
  2. Step 2: Convert to fraction form
    18,927.98/26,120.54 = 10,974.83/x
  3. Step 3: Cross multiply
    18,927.98x = 26,120.54 × 10,974.83
  4. Step 4: Simplify right side
    18,927.98x = 286,668,382.84
  5. Step 5: Solve for x
    x = 286,668,382.84/18,927.98
  6. Step 6: Final answer
    x = 15,145.22

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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.