Home / 8,371.12-12,556.02-4,206.88

Finding the Fourth Proportional to 8,371.12, 12,556.02 and 4,206.88

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Solution

The fourth proportional to 8,371.12, 12,556.02 and 4,206.88 is: 6,309.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.12 : 12,556.02 = 4,206.88 : x
  2. Step 2: Convert to fraction form
    8,371.12/12,556.02 = 4,206.88/x
  3. Step 3: Cross multiply
    8,371.12x = 12,556.02 × 4,206.88
  4. Step 4: Simplify right side
    8,371.12x = 52,821,669.42
  5. Step 5: Solve for x
    x = 52,821,669.42/8,371.12
  6. Step 6: Final answer
    x = 6,309.99

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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.