Home / 19,105.92-28,641.78-7,416.36

Finding the Fourth Proportional to 19,105.92, 28,641.78 and 7,416.36

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Solution

The fourth proportional to 19,105.92, 28,641.78 and 7,416.36 is: 11,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.92 : 28,641.78 = 7,416.36 : x
  2. Step 2: Convert to fraction form
    19,105.92/28,641.78 = 7,416.36/x
  3. Step 3: Cross multiply
    19,105.92x = 28,641.78 × 7,416.36
  4. Step 4: Simplify right side
    19,105.92x = 212,417,751.52
  5. Step 5: Solve for x
    x = 212,417,751.52/19,105.92
  6. Step 6: Final answer
    x = 11,117.90

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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.