Home / 19,515-26,923.35-12,804.33

Finding the Fourth Proportional to 19,515, 26,923.35 and 12,804.33

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Solution

The fourth proportional to 19,515, 26,923.35 and 12,804.33 is: 17,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515 : 26,923.35 = 12,804.33 : x
  2. Step 2: Convert to fraction form
    19,515/26,923.35 = 12,804.33/x
  3. Step 3: Cross multiply
    19,515x = 26,923.35 × 12,804.33
  4. Step 4: Simplify right side
    19,515x = 344,735,458.11
  5. Step 5: Solve for x
    x = 344,735,458.11/19,515
  6. Step 6: Final answer
    x = 17,665.15

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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.