Home / 13,182.55-18,189.70-7,517.41

Finding the Fourth Proportional to 13,182.55, 18,189.70 and 7,517.41

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Solution

The fourth proportional to 13,182.55, 18,189.70 and 7,517.41 is: 10,372.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,182.55 : 18,189.70 = 7,517.41 : x
  2. Step 2: Convert to fraction form
    13,182.55/18,189.70 = 7,517.41/x
  3. Step 3: Cross multiply
    13,182.55x = 18,189.70 × 7,517.41
  4. Step 4: Simplify right side
    13,182.55x = 136,739,368.41
  5. Step 5: Solve for x
    x = 136,739,368.41/13,182.55
  6. Step 6: Final answer
    x = 10,372.76

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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.