Home / 8,491.40-11,719.52-4,954.60

Finding the Fourth Proportional to 8,491.40, 11,719.52 and 4,954.60

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Solution

The fourth proportional to 8,491.40, 11,719.52 and 4,954.60 is: 6,838.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.40 : 11,719.52 = 4,954.60 : x
  2. Step 2: Convert to fraction form
    8,491.40/11,719.52 = 4,954.60/x
  3. Step 3: Cross multiply
    8,491.40x = 11,719.52 × 4,954.60
  4. Step 4: Simplify right side
    8,491.40x = 58,065,542.25
  5. Step 5: Solve for x
    x = 58,065,542.25/8,491.40
  6. Step 6: Final answer
    x = 6,838.16

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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.