Home / 18,669.12-28,004.16-6,365.76

Finding the Fourth Proportional to 18,669.12, 28,004.16 and 6,365.76

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Solution

The fourth proportional to 18,669.12, 28,004.16 and 6,365.76 is: 9,548.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.12 : 28,004.16 = 6,365.76 : x
  2. Step 2: Convert to fraction form
    18,669.12/28,004.16 = 6,365.76/x
  3. Step 3: Cross multiply
    18,669.12x = 28,004.16 × 6,365.76
  4. Step 4: Simplify right side
    18,669.12x = 178,267,761.56
  5. Step 5: Solve for x
    x = 178,267,761.56/18,669.12
  6. Step 6: Final answer
    x = 9,548.80

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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.