Home / 19,628.76-29,455.62-7,147.56

Finding the Fourth Proportional to 19,628.76, 29,455.62 and 7,147.56

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Solution

The fourth proportional to 19,628.76, 29,455.62 and 7,147.56 is: 10,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.76 : 29,455.62 = 7,147.56 : x
  2. Step 2: Convert to fraction form
    19,628.76/29,455.62 = 7,147.56/x
  3. Step 3: Cross multiply
    19,628.76x = 29,455.62 × 7,147.56
  4. Step 4: Simplify right side
    19,628.76x = 210,535,811.29
  5. Step 5: Solve for x
    x = 210,535,811.29/19,628.76
  6. Step 6: Final answer
    x = 10,725.88

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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.