Home / 12,687,109.64-17,507,766.03-6,885,774.62

Finding the Fourth Proportional to 12,687,109.64, 17,507,766.03 and 6,885,774.62

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Solution

The fourth proportional to 12,687,109.64, 17,507,766.03 and 6,885,774.62 is: 9,502,127.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,109.64 : 17,507,766.03 = 6,885,774.62 : x
  2. Step 2: Convert to fraction form
    12,687,109.64/17,507,766.03 = 6,885,774.62/x
  3. Step 3: Cross multiply
    12,687,109.64x = 17,507,766.03 × 6,885,774.62
  4. Step 4: Simplify right side
    12,687,109.64x = 120,554,530,982,272.17
  5. Step 5: Solve for x
    x = 120,554,530,982,272.17/12,687,109.64
  6. Step 6: Final answer
    x = 9,502,127.31

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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.