Home / 13,157.92-19,739.84-4,393.76

Finding the Fourth Proportional to 13,157.92, 19,739.84 and 4,393.76

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Solution

The fourth proportional to 13,157.92, 19,739.84 and 4,393.76 is: 6,591.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.92 : 19,739.84 = 4,393.76 : x
  2. Step 2: Convert to fraction form
    13,157.92/19,739.84 = 4,393.76/x
  3. Step 3: Cross multiply
    13,157.92x = 19,739.84 × 4,393.76
  4. Step 4: Simplify right side
    13,157.92x = 86,732,119.40
  5. Step 5: Solve for x
    x = 86,732,119.40/13,157.92
  6. Step 6: Final answer
    x = 6,591.63

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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.