Home / 19,418.09-29,156.27-11,107.49

Finding the Fourth Proportional to 19,418.09, 29,156.27 and 11,107.49

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Solution

The fourth proportional to 19,418.09, 29,156.27 and 11,107.49 is: 16,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.09 : 29,156.27 = 11,107.49 : x
  2. Step 2: Convert to fraction form
    19,418.09/29,156.27 = 11,107.49/x
  3. Step 3: Cross multiply
    19,418.09x = 29,156.27 × 11,107.49
  4. Step 4: Simplify right side
    19,418.09x = 323,852,776.14
  5. Step 5: Solve for x
    x = 323,852,776.14/19,418.09
  6. Step 6: Final answer
    x = 16,677.89

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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.