Home / 12,979,965.08-17,917,867.16-8,087,604.38

Finding the Fourth Proportional to 12,979,965.08, 17,917,867.16 and 8,087,604.38

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Solution

The fourth proportional to 12,979,965.08, 17,917,867.16 and 8,087,604.38 is: 11,164,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,965.08 : 17,917,867.16 = 8,087,604.38 : x
  2. Step 2: Convert to fraction form
    12,979,965.08/17,917,867.16 = 8,087,604.38/x
  3. Step 3: Cross multiply
    12,979,965.08x = 17,917,867.16 × 8,087,604.38
  4. Step 4: Simplify right side
    12,979,965.08x = 144,912,621,037,248.09
  5. Step 5: Solve for x
    x = 144,912,621,037,248.09/12,979,965.08
  6. Step 6: Final answer
    x = 11,164,330.58

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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.