Home / 12,686,912.25-17,507,956.21-6,885,694.07

Finding the Fourth Proportional to 12,686,912.25, 17,507,956.21 and 6,885,694.07

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Solution

The fourth proportional to 12,686,912.25, 17,507,956.21 and 6,885,694.07 is: 9,502,267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686,912.25 : 17,507,956.21 = 6,885,694.07 : x
  2. Step 2: Convert to fraction form
    12,686,912.25/17,507,956.21 = 6,885,694.07/x
  3. Step 3: Cross multiply
    12,686,912.25x = 17,507,956.21 × 6,885,694.07
  4. Step 4: Simplify right side
    12,686,912.25x = 120,554,430,213,917.48
  5. Step 5: Solve for x
    x = 120,554,430,213,917.48/12,686,912.25
  6. Step 6: Final answer
    x = 9,502,267.21

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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.