Home / 14,403.44-21,618.60-7,388.72

Finding the Fourth Proportional to 14,403.44, 21,618.60 and 7,388.72

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Solution

The fourth proportional to 14,403.44, 21,618.60 and 7,388.72 is: 11,089.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,403.44 : 21,618.60 = 7,388.72 : x
  2. Step 2: Convert to fraction form
    14,403.44/21,618.60 = 7,388.72/x
  3. Step 3: Cross multiply
    14,403.44x = 21,618.60 × 7,388.72
  4. Step 4: Simplify right side
    14,403.44x = 159,733,782.19
  5. Step 5: Solve for x
    x = 159,733,782.19/14,403.44
  6. Step 6: Final answer
    x = 11,089.97

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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.