Home / 8,769.81-12,102.36-4,791

Finding the Fourth Proportional to 8,769.81, 12,102.36 and 4,791

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Solution

The fourth proportional to 8,769.81, 12,102.36 and 4,791 is: 6,611.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.81 : 12,102.36 = 4,791 : x
  2. Step 2: Convert to fraction form
    8,769.81/12,102.36 = 4,791/x
  3. Step 3: Cross multiply
    8,769.81x = 12,102.36 × 4,791
  4. Step 4: Simplify right side
    8,769.81x = 57,982,406.76
  5. Step 5: Solve for x
    x = 57,982,406.76/8,769.81
  6. Step 6: Final answer
    x = 6,611.59

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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.