Home / 12,687,055.53-17,508,304.59-6,885,906.81

Finding the Fourth Proportional to 12,687,055.53, 17,508,304.59 and 6,885,906.81

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Solution

The fourth proportional to 12,687,055.53, 17,508,304.59 and 6,885,906.81 is: 9,502,642.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,055.53 : 17,508,304.59 = 6,885,906.81 : x
  2. Step 2: Convert to fraction form
    12,687,055.53/17,508,304.59 = 6,885,906.81/x
  3. Step 3: Cross multiply
    12,687,055.53x = 17,508,304.59 × 6,885,906.81
  4. Step 4: Simplify right side
    12,687,055.53x = 120,560,553,765,187.98
  5. Step 5: Solve for x
    x = 120,560,553,765,187.98/12,687,055.53
  6. Step 6: Final answer
    x = 9,502,642.56

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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.