Home / 14,512.64-20,027.26-8,139.84

Finding the Fourth Proportional to 14,512.64, 20,027.26 and 8,139.84

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Solution

The fourth proportional to 14,512.64, 20,027.26 and 8,139.84 is: 11,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,512.64 : 20,027.26 = 8,139.84 : x
  2. Step 2: Convert to fraction form
    14,512.64/20,027.26 = 8,139.84/x
  3. Step 3: Cross multiply
    14,512.64x = 20,027.26 × 8,139.84
  4. Step 4: Simplify right side
    14,512.64x = 163,018,692.04
  5. Step 5: Solve for x
    x = 163,018,692.04/14,512.64
  6. Step 6: Final answer
    x = 11,232.88

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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.