Home / 13,517.66-18,656.25-7,549.67

Finding the Fourth Proportional to 13,517.66, 18,656.25 and 7,549.67

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Solution

The fourth proportional to 13,517.66, 18,656.25 and 7,549.67 is: 10,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.66 : 18,656.25 = 7,549.67 : x
  2. Step 2: Convert to fraction form
    13,517.66/18,656.25 = 7,549.67/x
  3. Step 3: Cross multiply
    13,517.66x = 18,656.25 × 7,549.67
  4. Step 4: Simplify right side
    13,517.66x = 140,848,530.94
  5. Step 5: Solve for x
    x = 140,848,530.94/13,517.66
  6. Step 6: Final answer
    x = 10,419.59

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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.