Home / 18,790.04-28,186.66-4,939

Finding the Fourth Proportional to 18,790.04, 28,186.66 and 4,939

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Solution

The fourth proportional to 18,790.04, 28,186.66 and 4,939 is: 7,408.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.04 : 28,186.66 = 4,939 : x
  2. Step 2: Convert to fraction form
    18,790.04/28,186.66 = 4,939/x
  3. Step 3: Cross multiply
    18,790.04x = 28,186.66 × 4,939
  4. Step 4: Simplify right side
    18,790.04x = 139,213,913.74
  5. Step 5: Solve for x
    x = 139,213,913.74/18,790.04
  6. Step 6: Final answer
    x = 7,408.92

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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.