Home / 8,208.15-11,328.11-4,672.10

Finding the Fourth Proportional to 8,208.15, 11,328.11 and 4,672.10

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Solution

The fourth proportional to 8,208.15, 11,328.11 and 4,672.10 is: 6,447.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.15 : 11,328.11 = 4,672.10 : x
  2. Step 2: Convert to fraction form
    8,208.15/11,328.11 = 4,672.10/x
  3. Step 3: Cross multiply
    8,208.15x = 11,328.11 × 4,672.10
  4. Step 4: Simplify right side
    8,208.15x = 52,925,982.73
  5. Step 5: Solve for x
    x = 52,925,982.73/8,208.15
  6. Step 6: Final answer
    x = 6,447.98

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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.