Home / 19,728.96-29,599.92-9,339.36

Finding the Fourth Proportional to 19,728.96, 29,599.92 and 9,339.36

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Solution

The fourth proportional to 19,728.96, 29,599.92 and 9,339.36 is: 14,012.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.96 : 29,599.92 = 9,339.36 : x
  2. Step 2: Convert to fraction form
    19,728.96/29,599.92 = 9,339.36/x
  3. Step 3: Cross multiply
    19,728.96x = 29,599.92 × 9,339.36
  4. Step 4: Simplify right side
    19,728.96x = 276,444,308.85
  5. Step 5: Solve for x
    x = 276,444,308.85/19,728.96
  6. Step 6: Final answer
    x = 14,012.11

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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.