Home / 13,165.07-19,755.70-11,934.68

Finding the Fourth Proportional to 13,165.07, 19,755.70 and 11,934.68

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Solution

The fourth proportional to 13,165.07, 19,755.70 and 11,934.68 is: 17,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.07 : 19,755.70 = 11,934.68 : x
  2. Step 2: Convert to fraction form
    13,165.07/19,755.70 = 11,934.68/x
  3. Step 3: Cross multiply
    13,165.07x = 19,755.70 × 11,934.68
  4. Step 4: Simplify right side
    13,165.07x = 235,777,829.06
  5. Step 5: Solve for x
    x = 235,777,829.06/13,165.07
  6. Step 6: Final answer
    x = 17,909.36

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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.