Home / 19,011.24-28,516.86-7,914.65

Finding the Fourth Proportional to 19,011.24, 28,516.86 and 7,914.65

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Solution

The fourth proportional to 19,011.24, 28,516.86 and 7,914.65 is: 11,871.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011.24 : 28,516.86 = 7,914.65 : x
  2. Step 2: Convert to fraction form
    19,011.24/28,516.86 = 7,914.65/x
  3. Step 3: Cross multiply
    19,011.24x = 28,516.86 × 7,914.65
  4. Step 4: Simplify right side
    19,011.24x = 225,700,823.41
  5. Step 5: Solve for x
    x = 225,700,823.41/19,011.24
  6. Step 6: Final answer
    x = 11,871.97

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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.