Home / 13,666.89-20,502.36-4,899.75

Finding the Fourth Proportional to 13,666.89, 20,502.36 and 4,899.75

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Solution

The fourth proportional to 13,666.89, 20,502.36 and 4,899.75 is: 7,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.89 : 20,502.36 = 4,899.75 : x
  2. Step 2: Convert to fraction form
    13,666.89/20,502.36 = 4,899.75/x
  3. Step 3: Cross multiply
    13,666.89x = 20,502.36 × 4,899.75
  4. Step 4: Simplify right side
    13,666.89x = 100,456,438.41
  5. Step 5: Solve for x
    x = 100,456,438.41/13,666.89
  6. Step 6: Final answer
    x = 7,350.35

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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.