Home / 12,238.56-18,358.92-4,445.28

Finding the Fourth Proportional to 12,238.56, 18,358.92 and 4,445.28

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Solution

The fourth proportional to 12,238.56, 18,358.92 and 4,445.28 is: 6,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.56 : 18,358.92 = 4,445.28 : x
  2. Step 2: Convert to fraction form
    12,238.56/18,358.92 = 4,445.28/x
  3. Step 3: Cross multiply
    12,238.56x = 18,358.92 × 4,445.28
  4. Step 4: Simplify right side
    12,238.56x = 81,610,539.90
  5. Step 5: Solve for x
    x = 81,610,539.90/12,238.56
  6. Step 6: Final answer
    x = 6,668.31

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1.5x scale

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.