Home / 12,048.08-18,068.87-4,255.88

Finding the Fourth Proportional to 12,048.08, 18,068.87 and 4,255.88

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Solution

The fourth proportional to 12,048.08, 18,068.87 and 4,255.88 is: 6,382.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048.08 : 18,068.87 = 4,255.88 : x
  2. Step 2: Convert to fraction form
    12,048.08/18,068.87 = 4,255.88/x
  3. Step 3: Cross multiply
    12,048.08x = 18,068.87 × 4,255.88
  4. Step 4: Simplify right side
    12,048.08x = 76,898,862.75
  5. Step 5: Solve for x
    x = 76,898,862.75/12,048.08
  6. Step 6: Final answer
    x = 6,382.67

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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.