Home / 12,386,478.72-17,086,446.54-11,509,674.87

Finding the Fourth Proportional to 12,386,478.72, 17,086,446.54 and 11,509,674.87

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Solution

The fourth proportional to 12,386,478.72, 17,086,446.54 and 11,509,674.87 is: 15,876,945.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386,478.72 : 17,086,446.54 = 11,509,674.87 : x
  2. Step 2: Convert to fraction form
    12,386,478.72/17,086,446.54 = 11,509,674.87/x
  3. Step 3: Cross multiply
    12,386,478.72x = 17,086,446.54 × 11,509,674.87
  4. Step 4: Simplify right side
    12,386,478.72x = 196,659,444,359,036.44
  5. Step 5: Solve for x
    x = 196,659,444,359,036.44/12,386,478.72
  6. Step 6: Final answer
    x = 15,876,945.24

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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.