Home / 14,091.10-21,078.30-12,808.06

Finding the Fourth Proportional to 14,091.10, 21,078.30 and 12,808.06

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Solution

The fourth proportional to 14,091.10, 21,078.30 and 12,808.06 is: 19,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.10 : 21,078.30 = 12,808.06 : x
  2. Step 2: Convert to fraction form
    14,091.10/21,078.30 = 12,808.06/x
  3. Step 3: Cross multiply
    14,091.10x = 21,078.30 × 12,808.06
  4. Step 4: Simplify right side
    14,091.10x = 269,972,131.10
  5. Step 5: Solve for x
    x = 269,972,131.10/14,091.10
  6. Step 6: Final answer
    x = 19,159.05

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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.