Home / 10,112.35-15,175.35-3,538.59

Finding the Fourth Proportional to 10,112.35, 15,175.35 and 3,538.59

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Solution

The fourth proportional to 10,112.35, 15,175.35 and 3,538.59 is: 5,310.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.35 : 15,175.35 = 3,538.59 : x
  2. Step 2: Convert to fraction form
    10,112.35/15,175.35 = 3,538.59/x
  3. Step 3: Cross multiply
    10,112.35x = 15,175.35 × 3,538.59
  4. Step 4: Simplify right side
    10,112.35x = 53,699,341.76
  5. Step 5: Solve for x
    x = 53,699,341.76/10,112.35
  6. Step 6: Final answer
    x = 5,310.27

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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.