Home / 13,822.48-20,742.32-5,614.48

Finding the Fourth Proportional to 13,822.48, 20,742.32 and 5,614.48

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Solution

The fourth proportional to 13,822.48, 20,742.32 and 5,614.48 is: 8,425.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.48 : 20,742.32 = 5,614.48 : x
  2. Step 2: Convert to fraction form
    13,822.48/20,742.32 = 5,614.48/x
  3. Step 3: Cross multiply
    13,822.48x = 20,742.32 × 5,614.48
  4. Step 4: Simplify right side
    13,822.48x = 116,457,340.79
  5. Step 5: Solve for x
    x = 116,457,340.79/13,822.48
  6. Step 6: Final answer
    x = 8,425.21

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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.