Home / 18,684.48-28,027.14-6,991.32

Finding the Fourth Proportional to 18,684.48, 28,027.14 and 6,991.32

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Solution

The fourth proportional to 18,684.48, 28,027.14 and 6,991.32 is: 10,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.48 : 28,027.14 = 6,991.32 : x
  2. Step 2: Convert to fraction form
    18,684.48/28,027.14 = 6,991.32/x
  3. Step 3: Cross multiply
    18,684.48x = 28,027.14 × 6,991.32
  4. Step 4: Simplify right side
    18,684.48x = 195,946,704.42
  5. Step 5: Solve for x
    x = 195,946,704.42/18,684.48
  6. Step 6: Final answer
    x = 10,487.14

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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.