Home / 19,139.68-28,696.24-9,761.48

Finding the Fourth Proportional to 19,139.68, 28,696.24 and 9,761.48

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Solution

The fourth proportional to 19,139.68, 28,696.24 and 9,761.48 is: 14,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.68 : 28,696.24 = 9,761.48 : x
  2. Step 2: Convert to fraction form
    19,139.68/28,696.24 = 9,761.48/x
  3. Step 3: Cross multiply
    19,139.68x = 28,696.24 × 9,761.48
  4. Step 4: Simplify right side
    19,139.68x = 280,117,772.84
  5. Step 5: Solve for x
    x = 280,117,772.84/19,139.68
  6. Step 6: Final answer
    x = 14,635.45

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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.