Home / 14,700.64-20,287.92-8,413.60

Finding the Fourth Proportional to 14,700.64, 20,287.92 and 8,413.60

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Solution

The fourth proportional to 14,700.64, 20,287.92 and 8,413.60 is: 11,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,700.64 : 20,287.92 = 8,413.60 : x
  2. Step 2: Convert to fraction form
    14,700.64/20,287.92 = 8,413.60/x
  3. Step 3: Cross multiply
    14,700.64x = 20,287.92 × 8,413.60
  4. Step 4: Simplify right side
    14,700.64x = 170,694,443.71
  5. Step 5: Solve for x
    x = 170,694,443.71/14,700.64
  6. Step 6: Final answer
    x = 11,611.36

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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.