Home / 19,740.60-29,615.54-6,413.55

Finding the Fourth Proportional to 19,740.60, 29,615.54 and 6,413.55

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Solution

The fourth proportional to 19,740.60, 29,615.54 and 6,413.55 is: 9,621.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.60 : 29,615.54 = 6,413.55 : x
  2. Step 2: Convert to fraction form
    19,740.60/29,615.54 = 6,413.55/x
  3. Step 3: Cross multiply
    19,740.60x = 29,615.54 × 6,413.55
  4. Step 4: Simplify right side
    19,740.60x = 189,940,746.57
  5. Step 5: Solve for x
    x = 189,940,746.57/19,740.60
  6. Step 6: Final answer
    x = 9,621.83

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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.