Home / 14,420.45-19,917.89-10,435.25

Finding the Fourth Proportional to 14,420.45, 19,917.89 and 10,435.25

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Solution

The fourth proportional to 14,420.45, 19,917.89 and 10,435.25 is: 14,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.45 : 19,917.89 = 10,435.25 : x
  2. Step 2: Convert to fraction form
    14,420.45/19,917.89 = 10,435.25/x
  3. Step 3: Cross multiply
    14,420.45x = 19,917.89 × 10,435.25
  4. Step 4: Simplify right side
    14,420.45x = 207,848,009.86
  5. Step 5: Solve for x
    x = 207,848,009.86/14,420.45
  6. Step 6: Final answer
    x = 14,413.43

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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.