Home / 18,973.86-26,196.12-12,269.76

Finding the Fourth Proportional to 18,973.86, 26,196.12 and 12,269.76

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Solution

The fourth proportional to 18,973.86, 26,196.12 and 12,269.76 is: 16,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,973.86 : 26,196.12 = 12,269.76 : x
  2. Step 2: Convert to fraction form
    18,973.86/26,196.12 = 12,269.76/x
  3. Step 3: Cross multiply
    18,973.86x = 26,196.12 × 12,269.76
  4. Step 4: Simplify right side
    18,973.86x = 321,420,105.33
  5. Step 5: Solve for x
    x = 321,420,105.33/18,973.86
  6. Step 6: Final answer
    x = 16,940.15

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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.