Home / 12,668.18-18,996.74-4,871.50

Finding the Fourth Proportional to 12,668.18, 18,996.74 and 4,871.50

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Solution

The fourth proportional to 12,668.18, 18,996.74 and 4,871.50 is: 7,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.18 : 18,996.74 = 4,871.50 : x
  2. Step 2: Convert to fraction form
    12,668.18/18,996.74 = 4,871.50/x
  3. Step 3: Cross multiply
    12,668.18x = 18,996.74 × 4,871.50
  4. Step 4: Simplify right side
    12,668.18x = 92,542,618.91
  5. Step 5: Solve for x
    x = 92,542,618.91/12,668.18
  6. Step 6: Final answer
    x = 7,305.12

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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.