Home / 13,285.88-18,334.64-7,317.68

Finding the Fourth Proportional to 13,285.88, 18,334.64 and 7,317.68

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Solution

The fourth proportional to 13,285.88, 18,334.64 and 7,317.68 is: 10,098.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.88 : 18,334.64 = 7,317.68 : x
  2. Step 2: Convert to fraction form
    13,285.88/18,334.64 = 7,317.68/x
  3. Step 3: Cross multiply
    13,285.88x = 18,334.64 × 7,317.68
  4. Step 4: Simplify right side
    13,285.88x = 134,167,028.44
  5. Step 5: Solve for x
    x = 134,167,028.44/13,285.88
  6. Step 6: Final answer
    x = 10,098.47

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Similar ratio
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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.