Home / 13,491.67-18,630.25-8,464.53

Finding the Fourth Proportional to 13,491.67, 18,630.25 and 8,464.53

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Solution

The fourth proportional to 13,491.67, 18,630.25 and 8,464.53 is: 11,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.67 : 18,630.25 = 8,464.53 : x
  2. Step 2: Convert to fraction form
    13,491.67/18,630.25 = 8,464.53/x
  3. Step 3: Cross multiply
    13,491.67x = 18,630.25 × 8,464.53
  4. Step 4: Simplify right side
    13,491.67x = 157,696,310.03
  5. Step 5: Solve for x
    x = 157,696,310.03/13,491.67
  6. Step 6: Final answer
    x = 11,688.42

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1.5x scale

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.