Home / 18,968.13-28,455.54-6,485.22

Finding the Fourth Proportional to 18,968.13, 28,455.54 and 6,485.22

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Solution

The fourth proportional to 18,968.13, 28,455.54 and 6,485.22 is: 9,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.13 : 28,455.54 = 6,485.22 : x
  2. Step 2: Convert to fraction form
    18,968.13/28,455.54 = 6,485.22/x
  3. Step 3: Cross multiply
    18,968.13x = 28,455.54 × 6,485.22
  4. Step 4: Simplify right side
    18,968.13x = 184,540,412.80
  5. Step 5: Solve for x
    x = 184,540,412.80/18,968.13
  6. Step 6: Final answer
    x = 9,728.97

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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.