Home / 13,845.90-20,777.16-4,960.56

Finding the Fourth Proportional to 13,845.90, 20,777.16 and 4,960.56

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Solution

The fourth proportional to 13,845.90, 20,777.16 and 4,960.56 is: 7,443.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.90 : 20,777.16 = 4,960.56 : x
  2. Step 2: Convert to fraction form
    13,845.90/20,777.16 = 4,960.56/x
  3. Step 3: Cross multiply
    13,845.90x = 20,777.16 × 4,960.56
  4. Step 4: Simplify right side
    13,845.90x = 103,066,348.81
  5. Step 5: Solve for x
    x = 103,066,348.81/13,845.90
  6. Step 6: Final answer
    x = 7,443.82

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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.