Home / 13,440.92-20,161.65-4,892.07

Finding the Fourth Proportional to 13,440.92, 20,161.65 and 4,892.07

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Solution

The fourth proportional to 13,440.92, 20,161.65 and 4,892.07 is: 7,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.92 : 20,161.65 = 4,892.07 : x
  2. Step 2: Convert to fraction form
    13,440.92/20,161.65 = 4,892.07/x
  3. Step 3: Cross multiply
    13,440.92x = 20,161.65 × 4,892.07
  4. Step 4: Simplify right side
    13,440.92x = 98,632,203.12
  5. Step 5: Solve for x
    x = 98,632,203.12/13,440.92
  6. Step 6: Final answer
    x = 7,338.20

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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.