Home / 18,518.08-25,561.92-12,238.96

Finding the Fourth Proportional to 18,518.08, 25,561.92 and 12,238.96

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Solution

The fourth proportional to 18,518.08, 25,561.92 and 12,238.96 is: 16,894.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.08 : 25,561.92 = 12,238.96 : x
  2. Step 2: Convert to fraction form
    18,518.08/25,561.92 = 12,238.96/x
  3. Step 3: Cross multiply
    18,518.08x = 25,561.92 × 12,238.96
  4. Step 4: Simplify right side
    18,518.08x = 312,851,316.40
  5. Step 5: Solve for x
    x = 312,851,316.40/18,518.08
  6. Step 6: Final answer
    x = 16,894.37

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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.