Home / 13,937.70-19,232.76-8,271.48

Finding the Fourth Proportional to 13,937.70, 19,232.76 and 8,271.48

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Solution

The fourth proportional to 13,937.70, 19,232.76 and 8,271.48 is: 11,413.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.70 : 19,232.76 = 8,271.48 : x
  2. Step 2: Convert to fraction form
    13,937.70/19,232.76 = 8,271.48/x
  3. Step 3: Cross multiply
    13,937.70x = 19,232.76 × 8,271.48
  4. Step 4: Simplify right side
    13,937.70x = 159,083,389.68
  5. Step 5: Solve for x
    x = 159,083,389.68/13,937.70
  6. Step 6: Final answer
    x = 11,413.89

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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.