Home / 19,611.48-29,408.70-7,127.36

Finding the Fourth Proportional to 19,611.48, 29,408.70 and 7,127.36

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Solution

The fourth proportional to 19,611.48, 29,408.70 and 7,127.36 is: 10,687.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,611.48 : 29,408.70 = 7,127.36 : x
  2. Step 2: Convert to fraction form
    19,611.48/29,408.70 = 7,127.36/x
  3. Step 3: Cross multiply
    19,611.48x = 29,408.70 × 7,127.36
  4. Step 4: Simplify right side
    19,611.48x = 209,606,392.03
  5. Step 5: Solve for x
    x = 209,606,392.03/19,611.48
  6. Step 6: Final answer
    x = 10,687.94

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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.