Home / 12,876,017.96-17,756,730.11-8,457,948.54

Finding the Fourth Proportional to 12,876,017.96, 17,756,730.11 and 8,457,948.54

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Solution

The fourth proportional to 12,876,017.96, 17,756,730.11 and 8,457,948.54 is: 11,663,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876,017.96 : 17,756,730.11 = 8,457,948.54 : x
  2. Step 2: Convert to fraction form
    12,876,017.96/17,756,730.11 = 8,457,948.54/x
  3. Step 3: Cross multiply
    12,876,017.96x = 17,756,730.11 × 8,457,948.54
  4. Step 4: Simplify right side
    12,876,017.96x = 150,185,509,530,193.41
  5. Step 5: Solve for x
    x = 150,185,509,530,193.41/12,876,017.96
  6. Step 6: Final answer
    x = 11,663,971.73

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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.