Home / 13,242.35-19,857.11-7,697.29

Finding the Fourth Proportional to 13,242.35, 19,857.11 and 7,697.29

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Solution

The fourth proportional to 13,242.35, 19,857.11 and 7,697.29 is: 11,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.35 : 19,857.11 = 7,697.29 : x
  2. Step 2: Convert to fraction form
    13,242.35/19,857.11 = 7,697.29/x
  3. Step 3: Cross multiply
    13,242.35x = 19,857.11 × 7,697.29
  4. Step 4: Simplify right side
    13,242.35x = 152,845,934.23
  5. Step 5: Solve for x
    x = 152,845,934.23/13,242.35
  6. Step 6: Final answer
    x = 11,542.21

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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.