Home / 15,985.69-23,991.09-11,089.78

Finding the Fourth Proportional to 15,985.69, 23,991.09 and 11,089.78

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Solution

The fourth proportional to 15,985.69, 23,991.09 and 11,089.78 is: 16,643.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985.69 : 23,991.09 = 11,089.78 : x
  2. Step 2: Convert to fraction form
    15,985.69/23,991.09 = 11,089.78/x
  3. Step 3: Cross multiply
    15,985.69x = 23,991.09 × 11,089.78
  4. Step 4: Simplify right side
    15,985.69x = 266,055,910.06
  5. Step 5: Solve for x
    x = 266,055,910.06/15,985.69
  6. Step 6: Final answer
    x = 16,643.38

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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.