Home / 18,923.22-28,385.10-6,446.12

Finding the Fourth Proportional to 18,923.22, 28,385.10 and 6,446.12

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Solution

The fourth proportional to 18,923.22, 28,385.10 and 6,446.12 is: 9,669.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.22 : 28,385.10 = 6,446.12 : x
  2. Step 2: Convert to fraction form
    18,923.22/28,385.10 = 6,446.12/x
  3. Step 3: Cross multiply
    18,923.22x = 28,385.10 × 6,446.12
  4. Step 4: Simplify right side
    18,923.22x = 182,973,618.89
  5. Step 5: Solve for x
    x = 182,973,618.89/18,923.22
  6. Step 6: Final answer
    x = 9,669.26

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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.