Home / 13,919.75-19,209.29-7,546.35

Finding the Fourth Proportional to 13,919.75, 19,209.29 and 7,546.35

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Solution

The fourth proportional to 13,919.75, 19,209.29 and 7,546.35 is: 10,413.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.75 : 19,209.29 = 7,546.35 : x
  2. Step 2: Convert to fraction form
    13,919.75/19,209.29 = 7,546.35/x
  3. Step 3: Cross multiply
    13,919.75x = 19,209.29 × 7,546.35
  4. Step 4: Simplify right side
    13,919.75x = 144,959,987.86
  5. Step 5: Solve for x
    x = 144,959,987.86/13,919.75
  6. Step 6: Final answer
    x = 10,413.98

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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.