Home / 13,769.49-20,656.89-5,871.86

Finding the Fourth Proportional to 13,769.49, 20,656.89 and 5,871.86

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Solution

The fourth proportional to 13,769.49, 20,656.89 and 5,871.86 is: 8,808.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.49 : 20,656.89 = 5,871.86 : x
  2. Step 2: Convert to fraction form
    13,769.49/20,656.89 = 5,871.86/x
  3. Step 3: Cross multiply
    13,769.49x = 20,656.89 × 5,871.86
  4. Step 4: Simplify right side
    13,769.49x = 121,294,340.29
  5. Step 5: Solve for x
    x = 121,294,340.29/13,769.49
  6. Step 6: Final answer
    x = 8,808.92

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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.