Home / 18,507.64-25,548.72-12,134.36

Finding the Fourth Proportional to 18,507.64, 25,548.72 and 12,134.36

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Solution

The fourth proportional to 18,507.64, 25,548.72 and 12,134.36 is: 16,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.64 : 25,548.72 = 12,134.36 : x
  2. Step 2: Convert to fraction form
    18,507.64/25,548.72 = 12,134.36/x
  3. Step 3: Cross multiply
    18,507.64x = 25,548.72 × 12,134.36
  4. Step 4: Simplify right side
    18,507.64x = 310,017,240.68
  5. Step 5: Solve for x
    x = 310,017,240.68/18,507.64
  6. Step 6: Final answer
    x = 16,750.77

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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.