Home / 13,440.89-20,161.59-4,892.03

Finding the Fourth Proportional to 13,440.89, 20,161.59 and 4,892.03

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Solution

The fourth proportional to 13,440.89, 20,161.59 and 4,892.03 is: 7,338.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.89 : 20,161.59 = 4,892.03 : x
  2. Step 2: Convert to fraction form
    13,440.89/20,161.59 = 4,892.03/x
  3. Step 3: Cross multiply
    13,440.89x = 20,161.59 × 4,892.03
  4. Step 4: Simplify right side
    13,440.89x = 98,631,087.10
  5. Step 5: Solve for x
    x = 98,631,087.10/13,440.89
  6. Step 6: Final answer
    x = 7,338.14

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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.