Home / 12,979,752.23-17,917,573.53-8,087,391.49

Finding the Fourth Proportional to 12,979,752.23, 17,917,573.53 and 8,087,391.49

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Solution

The fourth proportional to 12,979,752.23, 17,917,573.53 and 8,087,391.49 is: 11,164,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,752.23 : 17,917,573.53 = 8,087,391.49 : x
  2. Step 2: Convert to fraction form
    12,979,752.23/17,917,573.53 = 8,087,391.49/x
  3. Step 3: Cross multiply
    12,979,752.23x = 17,917,573.53 × 8,087,391.49
  4. Step 4: Simplify right side
    12,979,752.23x = 144,906,431,687,971.28
  5. Step 5: Solve for x
    x = 144,906,431,687,971.28/12,979,752.23
  6. Step 6: Final answer
    x = 11,164,036.81

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1.5x scale

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.