Home / 13,288.21-18,338.36-7,546.08

Finding the Fourth Proportional to 13,288.21, 18,338.36 and 7,546.08

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Solution

The fourth proportional to 13,288.21, 18,338.36 and 7,546.08 is: 10,413.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.21 : 18,338.36 = 7,546.08 : x
  2. Step 2: Convert to fraction form
    13,288.21/18,338.36 = 7,546.08/x
  3. Step 3: Cross multiply
    13,288.21x = 18,338.36 × 7,546.08
  4. Step 4: Simplify right side
    13,288.21x = 138,382,693.90
  5. Step 5: Solve for x
    x = 138,382,693.90/13,288.21
  6. Step 6: Final answer
    x = 10,413.95

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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.