Home / 18,413.52-25,419.30-10,857.48

Finding the Fourth Proportional to 18,413.52, 25,419.30 and 10,857.48

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Solution

The fourth proportional to 18,413.52, 25,419.30 and 10,857.48 is: 14,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.52 : 25,419.30 = 10,857.48 : x
  2. Step 2: Convert to fraction form
    18,413.52/25,419.30 = 10,857.48/x
  3. Step 3: Cross multiply
    18,413.52x = 25,419.30 × 10,857.48
  4. Step 4: Simplify right side
    18,413.52x = 275,989,541.36
  5. Step 5: Solve for x
    x = 275,989,541.36/18,413.52
  6. Step 6: Final answer
    x = 14,988.42

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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.