Home / 14,169.44-21,235.56-7,929.20

Finding the Fourth Proportional to 14,169.44, 21,235.56 and 7,929.20

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Solution

The fourth proportional to 14,169.44, 21,235.56 and 7,929.20 is: 11,883.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,169.44 : 21,235.56 = 7,929.20 : x
  2. Step 2: Convert to fraction form
    14,169.44/21,235.56 = 7,929.20/x
  3. Step 3: Cross multiply
    14,169.44x = 21,235.56 × 7,929.20
  4. Step 4: Simplify right side
    14,169.44x = 168,381,002.35
  5. Step 5: Solve for x
    x = 168,381,002.35/14,169.44
  6. Step 6: Final answer
    x = 11,883.39

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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.