Home / 13,867.48-19,135.68-7,897.90

Finding the Fourth Proportional to 13,867.48, 19,135.68 and 7,897.90

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Solution

The fourth proportional to 13,867.48, 19,135.68 and 7,897.90 is: 10,898.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.48 : 19,135.68 = 7,897.90 : x
  2. Step 2: Convert to fraction form
    13,867.48/19,135.68 = 7,897.90/x
  3. Step 3: Cross multiply
    13,867.48x = 19,135.68 × 7,897.90
  4. Step 4: Simplify right side
    13,867.48x = 151,131,687.07
  5. Step 5: Solve for x
    x = 151,131,687.07/13,867.48
  6. Step 6: Final answer
    x = 10,898.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.