Home / 13,289.92-19,936.96-5,494.40

Finding the Fourth Proportional to 13,289.92, 19,936.96 and 5,494.40

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Solution

The fourth proportional to 13,289.92, 19,936.96 and 5,494.40 is: 8,242.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.92 : 19,936.96 = 5,494.40 : x
  2. Step 2: Convert to fraction form
    13,289.92/19,936.96 = 5,494.40/x
  3. Step 3: Cross multiply
    13,289.92x = 19,936.96 × 5,494.40
  4. Step 4: Simplify right side
    13,289.92x = 109,541,633.02
  5. Step 5: Solve for x
    x = 109,541,633.02/13,289.92
  6. Step 6: Final answer
    x = 8,242.46

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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.