Home / 12,690,530.56-17,511,084.28-7,256,972.80

Finding the Fourth Proportional to 12,690,530.56, 17,511,084.28 and 7,256,972.80

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Solution

The fourth proportional to 12,690,530.56, 17,511,084.28 and 7,256,972.80 is: 10,013,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,530.56 : 17,511,084.28 = 7,256,972.80 : x
  2. Step 2: Convert to fraction form
    12,690,530.56/17,511,084.28 = 7,256,972.80/x
  3. Step 3: Cross multiply
    12,690,530.56x = 17,511,084.28 × 7,256,972.80
  4. Step 4: Simplify right side
    12,690,530.56x = 127,077,462,318,467.59
  5. Step 5: Solve for x
    x = 127,077,462,318,467.59/12,690,530.56
  6. Step 6: Final answer
    x = 10,013,565.76

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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.