Home / 13,655.88-20,480.28-4,889.52

Finding the Fourth Proportional to 13,655.88, 20,480.28 and 4,889.52

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Solution

The fourth proportional to 13,655.88, 20,480.28 and 4,889.52 is: 7,333.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.88 : 20,480.28 = 4,889.52 : x
  2. Step 2: Convert to fraction form
    13,655.88/20,480.28 = 4,889.52/x
  3. Step 3: Cross multiply
    13,655.88x = 20,480.28 × 4,889.52
  4. Step 4: Simplify right side
    13,655.88x = 100,138,738.67
  5. Step 5: Solve for x
    x = 100,138,738.67/13,655.88
  6. Step 6: Final answer
    x = 7,333.01

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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.