Home / 10,128.77-15,199.94-3,554.97

Finding the Fourth Proportional to 10,128.77, 15,199.94 and 3,554.97

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Solution

The fourth proportional to 10,128.77, 15,199.94 and 3,554.97 is: 5,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128.77 : 15,199.94 = 3,554.97 : x
  2. Step 2: Convert to fraction form
    10,128.77/15,199.94 = 3,554.97/x
  3. Step 3: Cross multiply
    10,128.77x = 15,199.94 × 3,554.97
  4. Step 4: Simplify right side
    10,128.77x = 54,035,339.59
  5. Step 5: Solve for x
    x = 54,035,339.59/10,128.77
  6. Step 6: Final answer
    x = 5,334.84

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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.