Home / 19,005.37-28,508.07-5,154.37

Finding the Fourth Proportional to 19,005.37, 28,508.07 and 5,154.37

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Solution

The fourth proportional to 19,005.37, 28,508.07 and 5,154.37 is: 7,731.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.37 : 28,508.07 = 5,154.37 : x
  2. Step 2: Convert to fraction form
    19,005.37/28,508.07 = 5,154.37/x
  3. Step 3: Cross multiply
    19,005.37x = 28,508.07 × 5,154.37
  4. Step 4: Simplify right side
    19,005.37x = 146,940,972.45
  5. Step 5: Solve for x
    x = 146,940,972.45/19,005.37
  6. Step 6: Final answer
    x = 7,731.55

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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.