Home / 14,413.10-19,889.79-8,125.47

Finding the Fourth Proportional to 14,413.10, 19,889.79 and 8,125.47

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Solution

The fourth proportional to 14,413.10, 19,889.79 and 8,125.47 is: 11,212.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,413.10 : 19,889.79 = 8,125.47 : x
  2. Step 2: Convert to fraction form
    14,413.10/19,889.79 = 8,125.47/x
  3. Step 3: Cross multiply
    14,413.10x = 19,889.79 × 8,125.47
  4. Step 4: Simplify right side
    14,413.10x = 161,613,891.95
  5. Step 5: Solve for x
    x = 161,613,891.95/14,413.10
  6. Step 6: Final answer
    x = 11,212.99

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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.