Home / 14,104.08-21,164.91-12,790.20

Finding the Fourth Proportional to 14,104.08, 21,164.91 and 12,790.20

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Solution

The fourth proportional to 14,104.08, 21,164.91 and 12,790.20 is: 19,193.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,104.08 : 21,164.91 = 12,790.20 : x
  2. Step 2: Convert to fraction form
    14,104.08/21,164.91 = 12,790.20/x
  3. Step 3: Cross multiply
    14,104.08x = 21,164.91 × 12,790.20
  4. Step 4: Simplify right side
    14,104.08x = 270,703,463.29
  5. Step 5: Solve for x
    x = 270,703,463.29/14,104.08
  6. Step 6: Final answer
    x = 19,193.27

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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.