Home / 19,865.90-27,413.31-10,912.94

Finding the Fourth Proportional to 19,865.90, 27,413.31 and 10,912.94

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Solution

The fourth proportional to 19,865.90, 27,413.31 and 10,912.94 is: 15,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.90 : 27,413.31 = 10,912.94 : x
  2. Step 2: Convert to fraction form
    19,865.90/27,413.31 = 10,912.94/x
  3. Step 3: Cross multiply
    19,865.90x = 27,413.31 × 10,912.94
  4. Step 4: Simplify right side
    19,865.90x = 299,159,807.23
  5. Step 5: Solve for x
    x = 299,159,807.23/19,865.90
  6. Step 6: Final answer
    x = 15,058.96

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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.