Home / 13,917.86-19,195.49-12,235.70

Finding the Fourth Proportional to 13,917.86, 19,195.49 and 12,235.70

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Solution

The fourth proportional to 13,917.86, 19,195.49 and 12,235.70 is: 16,875.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.86 : 19,195.49 = 12,235.70 : x
  2. Step 2: Convert to fraction form
    13,917.86/19,195.49 = 12,235.70/x
  3. Step 3: Cross multiply
    13,917.86x = 19,195.49 × 12,235.70
  4. Step 4: Simplify right side
    13,917.86x = 234,870,256.99
  5. Step 5: Solve for x
    x = 234,870,256.99/13,917.86
  6. Step 6: Final answer
    x = 16,875.46

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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.