Home / 13,127.48-19,691.10-7,577.26

Finding the Fourth Proportional to 13,127.48, 19,691.10 and 7,577.26

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Solution

The fourth proportional to 13,127.48, 19,691.10 and 7,577.26 is: 11,365.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.48 : 19,691.10 = 7,577.26 : x
  2. Step 2: Convert to fraction form
    13,127.48/19,691.10 = 7,577.26/x
  3. Step 3: Cross multiply
    13,127.48x = 19,691.10 × 7,577.26
  4. Step 4: Simplify right side
    13,127.48x = 149,204,584.39
  5. Step 5: Solve for x
    x = 149,204,584.39/13,127.48
  6. Step 6: Final answer
    x = 11,365.82

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1.5x scale

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.