Home / 15,662,787.86-21,612,894.23-8,693,759.15

Finding the Fourth Proportional to 15,662,787.86, 21,612,894.23 and 8,693,759.15

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Solution

The fourth proportional to 15,662,787.86, 21,612,894.23 and 8,693,759.15 is: 11,996,414.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662,787.86 : 21,612,894.23 = 8,693,759.15 : x
  2. Step 2: Convert to fraction form
    15,662,787.86/21,612,894.23 = 8,693,759.15/x
  3. Step 3: Cross multiply
    15,662,787.86x = 21,612,894.23 × 8,693,759.15
  4. Step 4: Simplify right side
    15,662,787.86x = 187,897,296,909,928.41
  5. Step 5: Solve for x
    x = 187,897,296,909,928.41/15,662,787.86
  6. Step 6: Final answer
    x = 11,996,414.59

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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.