Home / 18,131.69-24,975.11-12,817.37

Finding the Fourth Proportional to 18,131.69, 24,975.11 and 12,817.37

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Solution

The fourth proportional to 18,131.69, 24,975.11 and 12,817.37 is: 17,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.69 : 24,975.11 = 12,817.37 : x
  2. Step 2: Convert to fraction form
    18,131.69/24,975.11 = 12,817.37/x
  3. Step 3: Cross multiply
    18,131.69x = 24,975.11 × 12,817.37
  4. Step 4: Simplify right side
    18,131.69x = 320,115,225.66
  5. Step 5: Solve for x
    x = 320,115,225.66/18,131.69
  6. Step 6: Final answer
    x = 17,655.01

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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.