Home / 13,775.36-20,659.76-4,889.96

Finding the Fourth Proportional to 13,775.36, 20,659.76 and 4,889.96

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Solution

The fourth proportional to 13,775.36, 20,659.76 and 4,889.96 is: 7,333.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.36 : 20,659.76 = 4,889.96 : x
  2. Step 2: Convert to fraction form
    13,775.36/20,659.76 = 4,889.96/x
  3. Step 3: Cross multiply
    13,775.36x = 20,659.76 × 4,889.96
  4. Step 4: Simplify right side
    13,775.36x = 101,025,308.94
  5. Step 5: Solve for x
    x = 101,025,308.94/13,775.36
  6. Step 6: Final answer
    x = 7,333.77

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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.