Home / 12,591.28-18,886.96-3,826.24

Finding the Fourth Proportional to 12,591.28, 18,886.96 and 3,826.24

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Solution

The fourth proportional to 12,591.28, 18,886.96 and 3,826.24 is: 5,739.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.28 : 18,886.96 = 3,826.24 : x
  2. Step 2: Convert to fraction form
    12,591.28/18,886.96 = 3,826.24/x
  3. Step 3: Cross multiply
    12,591.28x = 18,886.96 × 3,826.24
  4. Step 4: Simplify right side
    12,591.28x = 72,266,041.83
  5. Step 5: Solve for x
    x = 72,266,041.83/12,591.28
  6. Step 6: Final answer
    x = 5,739.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.