Home / 8,871.35-13,315.19-4,491.86

Finding the Fourth Proportional to 8,871.35, 13,315.19 and 4,491.86

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Solution

The fourth proportional to 8,871.35, 13,315.19 and 4,491.86 is: 6,741.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.35 : 13,315.19 = 4,491.86 : x
  2. Step 2: Convert to fraction form
    8,871.35/13,315.19 = 4,491.86/x
  3. Step 3: Cross multiply
    8,871.35x = 13,315.19 × 4,491.86
  4. Step 4: Simplify right side
    8,871.35x = 59,809,880.32
  5. Step 5: Solve for x
    x = 59,809,880.32/8,871.35
  6. Step 6: Final answer
    x = 6,741.92

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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.