Home / 13,413.83-18,498.33-9,776.57

Finding the Fourth Proportional to 13,413.83, 18,498.33 and 9,776.57

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Solution

The fourth proportional to 13,413.83, 18,498.33 and 9,776.57 is: 13,482.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.83 : 18,498.33 = 9,776.57 : x
  2. Step 2: Convert to fraction form
    13,413.83/18,498.33 = 9,776.57/x
  3. Step 3: Cross multiply
    13,413.83x = 18,498.33 × 9,776.57
  4. Step 4: Simplify right side
    13,413.83x = 180,850,125.64
  5. Step 5: Solve for x
    x = 180,850,125.64/13,413.83
  6. Step 6: Final answer
    x = 13,482.37

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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.