Home / 13,013,891.80-17,959,172.52-7,213,047.64

Finding the Fourth Proportional to 13,013,891.80, 17,959,172.52 and 7,213,047.64

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Solution

The fourth proportional to 13,013,891.80, 17,959,172.52 and 7,213,047.64 is: 9,954,006.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013,891.80 : 17,959,172.52 = 7,213,047.64 : x
  2. Step 2: Convert to fraction form
    13,013,891.80/17,959,172.52 = 7,213,047.64/x
  3. Step 3: Cross multiply
    13,013,891.80x = 17,959,172.52 × 7,213,047.64
  4. Step 4: Simplify right side
    13,013,891.80x = 129,540,366,961,738.84
  5. Step 5: Solve for x
    x = 129,540,366,961,738.84/13,013,891.80
  6. Step 6: Final answer
    x = 9,954,006.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.