Home / 12,518.80-18,776.98-3,284.80

Finding the Fourth Proportional to 12,518.80, 18,776.98 and 3,284.80

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Solution

The fourth proportional to 12,518.80, 18,776.98 and 3,284.80 is: 4,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.80 : 18,776.98 = 3,284.80 : x
  2. Step 2: Convert to fraction form
    12,518.80/18,776.98 = 3,284.80/x
  3. Step 3: Cross multiply
    12,518.80x = 18,776.98 × 3,284.80
  4. Step 4: Simplify right side
    12,518.80x = 61,678,513.60
  5. Step 5: Solve for x
    x = 61,678,513.60/12,518.80
  6. Step 6: Final answer
    x = 4,926.87

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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.