Home / 14,302.80-21,451.77-3,912.12

Finding the Fourth Proportional to 14,302.80, 21,451.77 and 3,912.12

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Solution

The fourth proportional to 14,302.80, 21,451.77 and 3,912.12 is: 5,867.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,302.80 : 21,451.77 = 3,912.12 : x
  2. Step 2: Convert to fraction form
    14,302.80/21,451.77 = 3,912.12/x
  3. Step 3: Cross multiply
    14,302.80x = 21,451.77 × 3,912.12
  4. Step 4: Simplify right side
    14,302.80x = 83,921,898.45
  5. Step 5: Solve for x
    x = 83,921,898.45/14,302.80
  6. Step 6: Final answer
    x = 5,867.52

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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.