Home / 16,720.80-23,074.48-9,268.80

Finding the Fourth Proportional to 16,720.80, 23,074.48 and 9,268.80

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Solution

The fourth proportional to 16,720.80, 23,074.48 and 9,268.80 is: 12,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.80 : 23,074.48 = 9,268.80 : x
  2. Step 2: Convert to fraction form
    16,720.80/23,074.48 = 9,268.80/x
  3. Step 3: Cross multiply
    16,720.80x = 23,074.48 × 9,268.80
  4. Step 4: Simplify right side
    16,720.80x = 213,872,740.22
  5. Step 5: Solve for x
    x = 213,872,740.22/16,720.80
  6. Step 6: Final answer
    x = 12,790.82

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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.