Home / 13,548.10-18,687.84-9,764.32

Finding the Fourth Proportional to 13,548.10, 18,687.84 and 9,764.32

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Solution

The fourth proportional to 13,548.10, 18,687.84 and 9,764.32 is: 13,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.10 : 18,687.84 = 9,764.32 : x
  2. Step 2: Convert to fraction form
    13,548.10/18,687.84 = 9,764.32/x
  3. Step 3: Cross multiply
    13,548.10x = 18,687.84 × 9,764.32
  4. Step 4: Simplify right side
    13,548.10x = 182,474,049.87
  5. Step 5: Solve for x
    x = 182,474,049.87/13,548.10
  6. Step 6: Final answer
    x = 13,468.61

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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.