Home / 18,204.67-25,124.34-11,135.80

Finding the Fourth Proportional to 18,204.67, 25,124.34 and 11,135.80

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Solution

The fourth proportional to 18,204.67, 25,124.34 and 11,135.80 is: 15,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,204.67 : 25,124.34 = 11,135.80 : x
  2. Step 2: Convert to fraction form
    18,204.67/25,124.34 = 11,135.80/x
  3. Step 3: Cross multiply
    18,204.67x = 25,124.34 × 11,135.80
  4. Step 4: Simplify right side
    18,204.67x = 279,779,625.37
  5. Step 5: Solve for x
    x = 279,779,625.37/18,204.67
  6. Step 6: Final answer
    x = 15,368.56

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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.