Home / 8,877.84-12,234.96-6,635.76

Finding the Fourth Proportional to 8,877.84, 12,234.96 and 6,635.76

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Solution

The fourth proportional to 8,877.84, 12,234.96 and 6,635.76 is: 9,145.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.84 : 12,234.96 = 6,635.76 : x
  2. Step 2: Convert to fraction form
    8,877.84/12,234.96 = 6,635.76/x
  3. Step 3: Cross multiply
    8,877.84x = 12,234.96 × 6,635.76
  4. Step 4: Simplify right side
    8,877.84x = 81,188,258.17
  5. Step 5: Solve for x
    x = 81,188,258.17/8,877.84
  6. Step 6: Final answer
    x = 9,145.05

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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.