Home / 14,211.84-19,611.96-8,161.92

Finding the Fourth Proportional to 14,211.84, 19,611.96 and 8,161.92

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Solution

The fourth proportional to 14,211.84, 19,611.96 and 8,161.92 is: 11,263.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.84 : 19,611.96 = 8,161.92 : x
  2. Step 2: Convert to fraction form
    14,211.84/19,611.96 = 8,161.92/x
  3. Step 3: Cross multiply
    14,211.84x = 19,611.96 × 8,161.92
  4. Step 4: Simplify right side
    14,211.84x = 160,071,248.56
  5. Step 5: Solve for x
    x = 160,071,248.56/14,211.84
  6. Step 6: Final answer
    x = 11,263.23

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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.