Home / 12,761.17-19,139.01-3,994.93

Finding the Fourth Proportional to 12,761.17, 19,139.01 and 3,994.93

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Solution

The fourth proportional to 12,761.17, 19,139.01 and 3,994.93 is: 5,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.17 : 19,139.01 = 3,994.93 : x
  2. Step 2: Convert to fraction form
    12,761.17/19,139.01 = 3,994.93/x
  3. Step 3: Cross multiply
    12,761.17x = 19,139.01 × 3,994.93
  4. Step 4: Simplify right side
    12,761.17x = 76,459,005.22
  5. Step 5: Solve for x
    x = 76,459,005.22/12,761.17
  6. Step 6: Final answer
    x = 5,991.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.