Home / 12,687,805.54-17,508,702.56-6,886,463.64

Finding the Fourth Proportional to 12,687,805.54, 17,508,702.56 and 6,886,463.64

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Solution

The fourth proportional to 12,687,805.54, 17,508,702.56 and 6,886,463.64 is: 9,503,065.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,805.54 : 17,508,702.56 = 6,886,463.64 : x
  2. Step 2: Convert to fraction form
    12,687,805.54/17,508,702.56 = 6,886,463.64/x
  3. Step 3: Cross multiply
    12,687,805.54x = 17,508,702.56 × 6,886,463.64
  4. Step 4: Simplify right side
    12,687,805.54x = 120,573,043,462,924.97
  5. Step 5: Solve for x
    x = 120,573,043,462,924.97/12,687,805.54
  6. Step 6: Final answer
    x = 9,503,065.21

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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.