Home / 13,502.76-20,256.54-4,142.60

Finding the Fourth Proportional to 13,502.76, 20,256.54 and 4,142.60

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Solution

The fourth proportional to 13,502.76, 20,256.54 and 4,142.60 is: 6,214.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,502.76 : 20,256.54 = 4,142.60 : x
  2. Step 2: Convert to fraction form
    13,502.76/20,256.54 = 4,142.60/x
  3. Step 3: Cross multiply
    13,502.76x = 20,256.54 × 4,142.60
  4. Step 4: Simplify right side
    13,502.76x = 83,914,742.60
  5. Step 5: Solve for x
    x = 83,914,742.60/13,502.76
  6. Step 6: Final answer
    x = 6,214.64

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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.