Home / 12,611,513.79-18,874,364.40-7,751,257.65

Finding the Fourth Proportional to 12,611,513.79, 18,874,364.40 and 7,751,257.65

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Solution

The fourth proportional to 12,611,513.79, 18,874,364.40 and 7,751,257.65 is: 11,600,515.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611,513.79 : 18,874,364.40 = 7,751,257.65 : x
  2. Step 2: Convert to fraction form
    12,611,513.79/18,874,364.40 = 7,751,257.65/x
  3. Step 3: Cross multiply
    12,611,513.79x = 18,874,364.40 × 7,751,257.65
  4. Step 4: Simplify right side
    12,611,513.79x = 146,300,061,444,387.66
  5. Step 5: Solve for x
    x = 146,300,061,444,387.66/12,611,513.79
  6. Step 6: Final answer
    x = 11,600,515.52

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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.