Home / 18,855.09-28,242.93-8,984.43

Finding the Fourth Proportional to 18,855.09, 28,242.93 and 8,984.43

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Solution

The fourth proportional to 18,855.09, 28,242.93 and 8,984.43 is: 13,457.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.09 : 28,242.93 = 8,984.43 : x
  2. Step 2: Convert to fraction form
    18,855.09/28,242.93 = 8,984.43/x
  3. Step 3: Cross multiply
    18,855.09x = 28,242.93 × 8,984.43
  4. Step 4: Simplify right side
    18,855.09x = 253,746,627.58
  5. Step 5: Solve for x
    x = 253,746,627.58/18,855.09
  6. Step 6: Final answer
    x = 13,457.73

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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.