Home / 13,898.03-20,858.00-5,135.45

Finding the Fourth Proportional to 13,898.03, 20,858.00 and 5,135.45

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Solution

The fourth proportional to 13,898.03, 20,858.00 and 5,135.45 is: 7,707.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.03 : 20,858.00 = 5,135.45 : x
  2. Step 2: Convert to fraction form
    13,898.03/20,858.00 = 5,135.45/x
  3. Step 3: Cross multiply
    13,898.03x = 20,858.00 × 5,135.45
  4. Step 4: Simplify right side
    13,898.03x = 107,115,086.13
  5. Step 5: Solve for x
    x = 107,115,086.13/13,898.03
  6. Step 6: Final answer
    x = 7,707.22

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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.