Home / 10,890.06-15,028.11-6,413.19

Finding the Fourth Proportional to 10,890.06, 15,028.11 and 6,413.19

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Solution

The fourth proportional to 10,890.06, 15,028.11 and 6,413.19 is: 8,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.06 : 15,028.11 = 6,413.19 : x
  2. Step 2: Convert to fraction form
    10,890.06/15,028.11 = 6,413.19/x
  3. Step 3: Cross multiply
    10,890.06x = 15,028.11 × 6,413.19
  4. Step 4: Simplify right side
    10,890.06x = 96,378,124.77
  5. Step 5: Solve for x
    x = 96,378,124.77/10,890.06
  6. Step 6: Final answer
    x = 8,850.10

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Double scale
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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.