Home / 13,849.79-20,777.72-5,085.38

Finding the Fourth Proportional to 13,849.79, 20,777.72 and 5,085.38

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Solution

The fourth proportional to 13,849.79, 20,777.72 and 5,085.38 is: 7,629.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.79 : 20,777.72 = 5,085.38 : x
  2. Step 2: Convert to fraction form
    13,849.79/20,777.72 = 5,085.38/x
  3. Step 3: Cross multiply
    13,849.79x = 20,777.72 × 5,085.38
  4. Step 4: Simplify right side
    13,849.79x = 105,662,628.25
  5. Step 5: Solve for x
    x = 105,662,628.25/13,849.79
  6. Step 6: Final answer
    x = 7,629.19

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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.