Home / 13,487.28-20,230.92-4,254

Finding the Fourth Proportional to 13,487.28, 20,230.92 and 4,254

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Solution

The fourth proportional to 13,487.28, 20,230.92 and 4,254 is: 6,381.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.28 : 20,230.92 = 4,254 : x
  2. Step 2: Convert to fraction form
    13,487.28/20,230.92 = 4,254/x
  3. Step 3: Cross multiply
    13,487.28x = 20,230.92 × 4,254
  4. Step 4: Simplify right side
    13,487.28x = 86,062,333.68
  5. Step 5: Solve for x
    x = 86,062,333.68/13,487.28
  6. Step 6: Final answer
    x = 6,381.00

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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.