Home / 13,824.10-20,732.10-4,938.40

Finding the Fourth Proportional to 13,824.10, 20,732.10 and 4,938.40

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Solution

The fourth proportional to 13,824.10, 20,732.10 and 4,938.40 is: 7,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.10 : 20,732.10 = 4,938.40 : x
  2. Step 2: Convert to fraction form
    13,824.10/20,732.10 = 4,938.40/x
  3. Step 3: Cross multiply
    13,824.10x = 20,732.10 × 4,938.40
  4. Step 4: Simplify right side
    13,824.10x = 102,383,402.64
  5. Step 5: Solve for x
    x = 102,383,402.64/13,824.10
  6. Step 6: Final answer
    x = 7,406.15

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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.