Home / 11,699.82-16,156.53-7,515.36

Finding the Fourth Proportional to 11,699.82, 16,156.53 and 7,515.36

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Solution

The fourth proportional to 11,699.82, 16,156.53 and 7,515.36 is: 10,378.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.82 : 16,156.53 = 7,515.36 : x
  2. Step 2: Convert to fraction form
    11,699.82/16,156.53 = 7,515.36/x
  3. Step 3: Cross multiply
    11,699.82x = 16,156.53 × 7,515.36
  4. Step 4: Simplify right side
    11,699.82x = 121,422,139.30
  5. Step 5: Solve for x
    x = 121,422,139.30/11,699.82
  6. Step 6: Final answer
    x = 10,378.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.