Home / 18,674.04-28,021.32-8,813.06

Finding the Fourth Proportional to 18,674.04, 28,021.32 and 8,813.06

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Solution

The fourth proportional to 18,674.04, 28,021.32 and 8,813.06 is: 13,224.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.04 : 28,021.32 = 8,813.06 : x
  2. Step 2: Convert to fraction form
    18,674.04/28,021.32 = 8,813.06/x
  3. Step 3: Cross multiply
    18,674.04x = 28,021.32 × 8,813.06
  4. Step 4: Simplify right side
    18,674.04x = 246,953,539.41
  5. Step 5: Solve for x
    x = 246,953,539.41/18,674.04
  6. Step 6: Final answer
    x = 13,224.43

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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.