Home / 10,124.96-13,971.80-5,649

Finding the Fourth Proportional to 10,124.96, 13,971.80 and 5,649

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Solution

The fourth proportional to 10,124.96, 13,971.80 and 5,649 is: 7,795.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,124.96 : 13,971.80 = 5,649 : x
  2. Step 2: Convert to fraction form
    10,124.96/13,971.80 = 5,649/x
  3. Step 3: Cross multiply
    10,124.96x = 13,971.80 × 5,649
  4. Step 4: Simplify right side
    10,124.96x = 78,926,669.96
  5. Step 5: Solve for x
    x = 78,926,669.96/10,124.96
  6. Step 6: Final answer
    x = 7,795.26

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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.