Home / 14,443.20-19,930.44-8,474.04

Finding the Fourth Proportional to 14,443.20, 19,930.44 and 8,474.04

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Solution

The fourth proportional to 14,443.20, 19,930.44 and 8,474.04 is: 11,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.20 : 19,930.44 = 8,474.04 : x
  2. Step 2: Convert to fraction form
    14,443.20/19,930.44 = 8,474.04/x
  3. Step 3: Cross multiply
    14,443.20x = 19,930.44 × 8,474.04
  4. Step 4: Simplify right side
    14,443.20x = 168,891,345.78
  5. Step 5: Solve for x
    x = 168,891,345.78/14,443.20
  6. Step 6: Final answer
    x = 11,693.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.