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Finding the Fourth Proportional to 8,482.61, 12,719.21 and 6,738.77

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Solution

The fourth proportional to 8,482.61, 12,719.21 and 6,738.77 is: 10,104.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.61 : 12,719.21 = 6,738.77 : x
  2. Step 2: Convert to fraction form
    8,482.61/12,719.21 = 6,738.77/x
  3. Step 3: Cross multiply
    8,482.61x = 12,719.21 × 6,738.77
  4. Step 4: Simplify right side
    8,482.61x = 85,711,733.48
  5. Step 5: Solve for x
    x = 85,711,733.48/8,482.61
  6. Step 6: Final answer
    x = 10,104.41

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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.