Home / 12,901,142.57-17,802,659.25-7,673,862.65

Finding the Fourth Proportional to 12,901,142.57, 17,802,659.25 and 7,673,862.65

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Solution

The fourth proportional to 12,901,142.57, 17,802,659.25 and 7,673,862.65 is: 10,589,384.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901,142.57 : 17,802,659.25 = 7,673,862.65 : x
  2. Step 2: Convert to fraction form
    12,901,142.57/17,802,659.25 = 7,673,862.65/x
  3. Step 3: Cross multiply
    12,901,142.57x = 17,802,659.25 × 7,673,862.65
  4. Step 4: Simplify right side
    12,901,142.57x = 136,615,161,800,238.70
  5. Step 5: Solve for x
    x = 136,615,161,800,238.70/12,901,142.57
  6. Step 6: Final answer
    x = 10,589,384.71

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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.