Home / 14,032.80-21,049.20-8,186.40

Finding the Fourth Proportional to 14,032.80, 21,049.20 and 8,186.40

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Solution

The fourth proportional to 14,032.80, 21,049.20 and 8,186.40 is: 12,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,032.80 : 21,049.20 = 8,186.40 : x
  2. Step 2: Convert to fraction form
    14,032.80/21,049.20 = 8,186.40/x
  3. Step 3: Cross multiply
    14,032.80x = 21,049.20 × 8,186.40
  4. Step 4: Simplify right side
    14,032.80x = 172,317,170.88
  5. Step 5: Solve for x
    x = 172,317,170.88/14,032.80
  6. Step 6: Final answer
    x = 12,279.60

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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.