Home / 18,413.49-25,410.79-10,455.88

Finding the Fourth Proportional to 18,413.49, 25,410.79 and 10,455.88

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Solution

The fourth proportional to 18,413.49, 25,410.79 and 10,455.88 is: 14,429.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.49 : 25,410.79 = 10,455.88 : x
  2. Step 2: Convert to fraction form
    18,413.49/25,410.79 = 10,455.88/x
  3. Step 3: Cross multiply
    18,413.49x = 25,410.79 × 10,455.88
  4. Step 4: Simplify right side
    18,413.49x = 265,692,170.95
  5. Step 5: Solve for x
    x = 265,692,170.95/18,413.49
  6. Step 6: Final answer
    x = 14,429.21

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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.