Home / 10,385.96-15,584.70-7,618.28

Finding the Fourth Proportional to 10,385.96, 15,584.70 and 7,618.28

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Solution

The fourth proportional to 10,385.96, 15,584.70 and 7,618.28 is: 11,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.96 : 15,584.70 = 7,618.28 : x
  2. Step 2: Convert to fraction form
    10,385.96/15,584.70 = 7,618.28/x
  3. Step 3: Cross multiply
    10,385.96x = 15,584.70 × 7,618.28
  4. Step 4: Simplify right side
    10,385.96x = 118,728,608.32
  5. Step 5: Solve for x
    x = 118,728,608.32/10,385.96
  6. Step 6: Final answer
    x = 11,431.65

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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.