Home / 13,413.30-20,122.65-4,646.40

Finding the Fourth Proportional to 13,413.30, 20,122.65 and 4,646.40

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Solution

The fourth proportional to 13,413.30, 20,122.65 and 4,646.40 is: 6,970.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.30 : 20,122.65 = 4,646.40 : x
  2. Step 2: Convert to fraction form
    13,413.30/20,122.65 = 4,646.40/x
  3. Step 3: Cross multiply
    13,413.30x = 20,122.65 × 4,646.40
  4. Step 4: Simplify right side
    13,413.30x = 93,497,880.96
  5. Step 5: Solve for x
    x = 93,497,880.96/13,413.30
  6. Step 6: Final answer
    x = 6,970.54

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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.