Home / 13,358.94-18,443.74-8,580.82

Finding the Fourth Proportional to 13,358.94, 18,443.74 and 8,580.82

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Solution

The fourth proportional to 13,358.94, 18,443.74 and 8,580.82 is: 11,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.94 : 18,443.74 = 8,580.82 : x
  2. Step 2: Convert to fraction form
    13,358.94/18,443.74 = 8,580.82/x
  3. Step 3: Cross multiply
    13,358.94x = 18,443.74 × 8,580.82
  4. Step 4: Simplify right side
    13,358.94x = 158,262,413.07
  5. Step 5: Solve for x
    x = 158,262,413.07/13,358.94
  6. Step 6: Final answer
    x = 11,846.93

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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.