Home / 43,137.76-64,706.60-11,973

Finding the Fourth Proportional to 43,137.76, 64,706.60 and 11,973

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Solution

The fourth proportional to 43,137.76, 64,706.60 and 11,973 is: 17,959.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,137.76 : 64,706.60 = 11,973 : x
  2. Step 2: Convert to fraction form
    43,137.76/64,706.60 = 11,973/x
  3. Step 3: Cross multiply
    43,137.76x = 64,706.60 × 11,973
  4. Step 4: Simplify right side
    43,137.76x = 774,732,121.80
  5. Step 5: Solve for x
    x = 774,732,121.80/43,137.76
  6. Step 6: Final answer
    x = 17,959.49

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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.