Home / 10,039.81-15,039.24-4,758.79

Finding the Fourth Proportional to 10,039.81, 15,039.24 and 4,758.79

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Solution

The fourth proportional to 10,039.81, 15,039.24 and 4,758.79 is: 7,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,039.81 : 15,039.24 = 4,758.79 : x
  2. Step 2: Convert to fraction form
    10,039.81/15,039.24 = 4,758.79/x
  3. Step 3: Cross multiply
    10,039.81x = 15,039.24 × 4,758.79
  4. Step 4: Simplify right side
    10,039.81x = 71,568,584.92
  5. Step 5: Solve for x
    x = 71,568,584.92/10,039.81
  6. Step 6: Final answer
    x = 7,128.48

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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.