Home / 13,749.36-20,623.80-4,389.96

Finding the Fourth Proportional to 13,749.36, 20,623.80 and 4,389.96

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Solution

The fourth proportional to 13,749.36, 20,623.80 and 4,389.96 is: 6,584.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.36 : 20,623.80 = 4,389.96 : x
  2. Step 2: Convert to fraction form
    13,749.36/20,623.80 = 4,389.96/x
  3. Step 3: Cross multiply
    13,749.36x = 20,623.80 × 4,389.96
  4. Step 4: Simplify right side
    13,749.36x = 90,537,657.05
  5. Step 5: Solve for x
    x = 90,537,657.05/13,749.36
  6. Step 6: Final answer
    x = 6,584.86

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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.