Home / 18,350.90-25,334.75-12,081.50

Finding the Fourth Proportional to 18,350.90, 25,334.75 and 12,081.50

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Solution

The fourth proportional to 18,350.90, 25,334.75 and 12,081.50 is: 16,679.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.90 : 25,334.75 = 12,081.50 : x
  2. Step 2: Convert to fraction form
    18,350.90/25,334.75 = 12,081.50/x
  3. Step 3: Cross multiply
    18,350.90x = 25,334.75 × 12,081.50
  4. Step 4: Simplify right side
    18,350.90x = 306,081,782.13
  5. Step 5: Solve for x
    x = 306,081,782.13/18,350.90
  6. Step 6: Final answer
    x = 16,679.39

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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.