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Finding the Fourth Proportional to 7,885.04, 11,811.71 and 3,924.35

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Solution

The fourth proportional to 7,885.04, 11,811.71 and 3,924.35 is: 5,878.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.04 : 11,811.71 = 3,924.35 : x
  2. Step 2: Convert to fraction form
    7,885.04/11,811.71 = 3,924.35/x
  3. Step 3: Cross multiply
    7,885.04x = 11,811.71 × 3,924.35
  4. Step 4: Simplify right side
    7,885.04x = 46,353,205.46
  5. Step 5: Solve for x
    x = 46,353,205.46/7,885.04
  6. Step 6: Final answer
    x = 5,878.63

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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.