Home / 13,250.84-19,876.59-3,889.87

Finding the Fourth Proportional to 13,250.84, 19,876.59 and 3,889.87

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Solution

The fourth proportional to 13,250.84, 19,876.59 and 3,889.87 is: 5,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.84 : 19,876.59 = 3,889.87 : x
  2. Step 2: Convert to fraction form
    13,250.84/19,876.59 = 3,889.87/x
  3. Step 3: Cross multiply
    13,250.84x = 19,876.59 × 3,889.87
  4. Step 4: Simplify right side
    13,250.84x = 77,317,413.26
  5. Step 5: Solve for x
    x = 77,317,413.26/13,250.84
  6. Step 6: Final answer
    x = 5,834.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.