Home / 10,413.02-15,615.60-3,391.20

Finding the Fourth Proportional to 10,413.02, 15,615.60 and 3,391.20

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Solution

The fourth proportional to 10,413.02, 15,615.60 and 3,391.20 is: 5,085.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,413.02 : 15,615.60 = 3,391.20 : x
  2. Step 2: Convert to fraction form
    10,413.02/15,615.60 = 3,391.20/x
  3. Step 3: Cross multiply
    10,413.02x = 15,615.60 × 3,391.20
  4. Step 4: Simplify right side
    10,413.02x = 52,955,622.72
  5. Step 5: Solve for x
    x = 52,955,622.72/10,413.02
  6. Step 6: Final answer
    x = 5,085.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.