Home / 15,835.84-21,852.60-8,761.84

Finding the Fourth Proportional to 15,835.84, 21,852.60 and 8,761.84

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Solution

The fourth proportional to 15,835.84, 21,852.60 and 8,761.84 is: 12,090.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.84 : 21,852.60 = 8,761.84 : x
  2. Step 2: Convert to fraction form
    15,835.84/21,852.60 = 8,761.84/x
  3. Step 3: Cross multiply
    15,835.84x = 21,852.60 × 8,761.84
  4. Step 4: Simplify right side
    15,835.84x = 191,468,984.78
  5. Step 5: Solve for x
    x = 191,468,984.78/15,835.84
  6. Step 6: Final answer
    x = 12,090.86

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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.