Home / 19,138.37-28,696.50-7,437.92

Finding the Fourth Proportional to 19,138.37, 28,696.50 and 7,437.92

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Solution

The fourth proportional to 19,138.37, 28,696.50 and 7,437.92 is: 11,152.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.37 : 28,696.50 = 7,437.92 : x
  2. Step 2: Convert to fraction form
    19,138.37/28,696.50 = 7,437.92/x
  3. Step 3: Cross multiply
    19,138.37x = 28,696.50 × 7,437.92
  4. Step 4: Simplify right side
    19,138.37x = 213,442,127.80
  5. Step 5: Solve for x
    x = 213,442,127.80/19,138.37
  6. Step 6: Final answer
    x = 11,152.58

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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.