Home / 13,491.02-20,246.93-8,809.76

Finding the Fourth Proportional to 13,491.02, 20,246.93 and 8,809.76

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Solution

The fourth proportional to 13,491.02, 20,246.93 and 8,809.76 is: 13,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.02 : 20,246.93 = 8,809.76 : x
  2. Step 2: Convert to fraction form
    13,491.02/20,246.93 = 8,809.76/x
  3. Step 3: Cross multiply
    13,491.02x = 20,246.93 × 8,809.76
  4. Step 4: Simplify right side
    13,491.02x = 178,370,448.75
  5. Step 5: Solve for x
    x = 178,370,448.75/13,491.02
  6. Step 6: Final answer
    x = 13,221.43

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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.