Home / 10,413.20-14,370.40-5,697.36

Finding the Fourth Proportional to 10,413.20, 14,370.40 and 5,697.36

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Solution

The fourth proportional to 10,413.20, 14,370.40 and 5,697.36 is: 7,862.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,413.20 : 14,370.40 = 5,697.36 : x
  2. Step 2: Convert to fraction form
    10,413.20/14,370.40 = 5,697.36/x
  3. Step 3: Cross multiply
    10,413.20x = 14,370.40 × 5,697.36
  4. Step 4: Simplify right side
    10,413.20x = 81,873,342.14
  5. Step 5: Solve for x
    x = 81,873,342.14/10,413.20
  6. Step 6: Final answer
    x = 7,862.46

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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.