Home / 12,859,920.86-17,761,419.48-8,469,273.63

Finding the Fourth Proportional to 12,859,920.86, 17,761,419.48 and 8,469,273.63

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Solution

The fourth proportional to 12,859,920.86, 17,761,419.48 and 8,469,273.63 is: 11,697,297.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859,920.86 : 17,761,419.48 = 8,469,273.63 : x
  2. Step 2: Convert to fraction form
    12,859,920.86/17,761,419.48 = 8,469,273.63/x
  3. Step 3: Cross multiply
    12,859,920.86x = 17,761,419.48 × 8,469,273.63
  4. Step 4: Simplify right side
    12,859,920.86x = 150,426,321,731,697.41
  5. Step 5: Solve for x
    x = 150,426,321,731,697.41/12,859,920.86
  6. Step 6: Final answer
    x = 11,697,297.63

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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.