Home / 13,922.89-19,212.84-7,953.76

Finding the Fourth Proportional to 13,922.89, 19,212.84 and 7,953.76

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Solution

The fourth proportional to 13,922.89, 19,212.84 and 7,953.76 is: 10,975.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.89 : 19,212.84 = 7,953.76 : x
  2. Step 2: Convert to fraction form
    13,922.89/19,212.84 = 7,953.76/x
  3. Step 3: Cross multiply
    13,922.89x = 19,212.84 × 7,953.76
  4. Step 4: Simplify right side
    13,922.89x = 152,814,318.28
  5. Step 5: Solve for x
    x = 152,814,318.28/13,922.89
  6. Step 6: Final answer
    x = 10,975.76

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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.