Home / 11,384.70-15,706.50-6,906.84

Finding the Fourth Proportional to 11,384.70, 15,706.50 and 6,906.84

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Solution

The fourth proportional to 11,384.70, 15,706.50 and 6,906.84 is: 9,528.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,384.70 : 15,706.50 = 6,906.84 : x
  2. Step 2: Convert to fraction form
    11,384.70/15,706.50 = 6,906.84/x
  3. Step 3: Cross multiply
    11,384.70x = 15,706.50 × 6,906.84
  4. Step 4: Simplify right side
    11,384.70x = 108,482,282.46
  5. Step 5: Solve for x
    x = 108,482,282.46/11,384.70
  6. Step 6: Final answer
    x = 9,528.78

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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.