Home / 13,517.68-18,653.94-7,549.30

Finding the Fourth Proportional to 13,517.68, 18,653.94 and 7,549.30

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Solution

The fourth proportional to 13,517.68, 18,653.94 and 7,549.30 is: 10,417.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.68 : 18,653.94 = 7,549.30 : x
  2. Step 2: Convert to fraction form
    13,517.68/18,653.94 = 7,549.30/x
  3. Step 3: Cross multiply
    13,517.68x = 18,653.94 × 7,549.30
  4. Step 4: Simplify right side
    13,517.68x = 140,824,189.24
  5. Step 5: Solve for x
    x = 140,824,189.24/13,517.68
  6. Step 6: Final answer
    x = 10,417.78

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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.