Home / 13,918.10-20,879.45-6,898.44

Finding the Fourth Proportional to 13,918.10, 20,879.45 and 6,898.44

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Solution

The fourth proportional to 13,918.10, 20,879.45 and 6,898.44 is: 10,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.10 : 20,879.45 = 6,898.44 : x
  2. Step 2: Convert to fraction form
    13,918.10/20,879.45 = 6,898.44/x
  3. Step 3: Cross multiply
    13,918.10x = 20,879.45 × 6,898.44
  4. Step 4: Simplify right side
    13,918.10x = 144,035,633.06
  5. Step 5: Solve for x
    x = 144,035,633.06/13,918.10
  6. Step 6: Final answer
    x = 10,348.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.