Home / 10,422.12-14,383.92-6,172.85

Finding the Fourth Proportional to 10,422.12, 14,383.92 and 6,172.85

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Solution

The fourth proportional to 10,422.12, 14,383.92 and 6,172.85 is: 8,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.12 : 14,383.92 = 6,172.85 : x
  2. Step 2: Convert to fraction form
    10,422.12/14,383.92 = 6,172.85/x
  3. Step 3: Cross multiply
    10,422.12x = 14,383.92 × 6,172.85
  4. Step 4: Simplify right side
    10,422.12x = 88,789,677.79
  5. Step 5: Solve for x
    x = 88,789,677.79/10,422.12
  6. Step 6: Final answer
    x = 8,519.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.