Home / 12,386,486.36-17,086,457.16-11,509,682.54

Finding the Fourth Proportional to 12,386,486.36, 17,086,457.16 and 11,509,682.54

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Solution

The fourth proportional to 12,386,486.36, 17,086,457.16 and 11,509,682.54 is: 15,876,955.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386,486.36 : 17,086,457.16 = 11,509,682.54 : x
  2. Step 2: Convert to fraction form
    12,386,486.36/17,086,457.16 = 11,509,682.54/x
  3. Step 3: Cross multiply
    12,386,486.36x = 17,086,457.16 × 11,509,682.54
  4. Step 4: Simplify right side
    12,386,486.36x = 196,659,697,644,909.97
  5. Step 5: Solve for x
    x = 196,659,697,644,909.97/12,386,486.36
  6. Step 6: Final answer
    x = 15,876,955.90

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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.