Home / 14,018.08-20,990.40-11,821.36

Finding the Fourth Proportional to 14,018.08, 20,990.40 and 11,821.36

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Solution

The fourth proportional to 14,018.08, 20,990.40 and 11,821.36 is: 17,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,018.08 : 20,990.40 = 11,821.36 : x
  2. Step 2: Convert to fraction form
    14,018.08/20,990.40 = 11,821.36/x
  3. Step 3: Cross multiply
    14,018.08x = 20,990.40 × 11,821.36
  4. Step 4: Simplify right side
    14,018.08x = 248,135,074.94
  5. Step 5: Solve for x
    x = 248,135,074.94/14,018.08
  6. Step 6: Final answer
    x = 17,701.07

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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.