Home / 18,403.11-25,395.39-10,445.22

Finding the Fourth Proportional to 18,403.11, 25,395.39 and 10,445.22

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Solution

The fourth proportional to 18,403.11, 25,395.39 and 10,445.22 is: 14,413.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.11 : 25,395.39 = 10,445.22 : x
  2. Step 2: Convert to fraction form
    18,403.11/25,395.39 = 10,445.22/x
  3. Step 3: Cross multiply
    18,403.11x = 25,395.39 × 10,445.22
  4. Step 4: Simplify right side
    18,403.11x = 265,260,435.54
  5. Step 5: Solve for x
    x = 265,260,435.54/18,403.11
  6. Step 6: Final answer
    x = 14,413.89

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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.