Home / 12,979,761.84-17,917,586.83-8,087,401.12

Finding the Fourth Proportional to 12,979,761.84, 17,917,586.83 and 8,087,401.12

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Solution

The fourth proportional to 12,979,761.84, 17,917,586.83 and 8,087,401.12 is: 11,164,050.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,761.84 : 17,917,586.83 = 8,087,401.12 : x
  2. Step 2: Convert to fraction form
    12,979,761.84/17,917,586.83 = 8,087,401.12/x
  3. Step 3: Cross multiply
    12,979,761.84x = 17,917,586.83 × 8,087,401.12
  4. Step 4: Simplify right side
    12,979,761.84x = 144,906,711,796,639.25
  5. Step 5: Solve for x
    x = 144,906,711,796,639.25/12,979,761.84
  6. Step 6: Final answer
    x = 11,164,050.13

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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.