Home / 10,381.14-15,578.96-4,140.59

Finding the Fourth Proportional to 10,381.14, 15,578.96 and 4,140.59

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Solution

The fourth proportional to 10,381.14, 15,578.96 and 4,140.59 is: 6,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.14 : 15,578.96 = 4,140.59 : x
  2. Step 2: Convert to fraction form
    10,381.14/15,578.96 = 4,140.59/x
  3. Step 3: Cross multiply
    10,381.14x = 15,578.96 × 4,140.59
  4. Step 4: Simplify right side
    10,381.14x = 64,505,987.39
  5. Step 5: Solve for x
    x = 64,505,987.39/10,381.14
  6. Step 6: Final answer
    x = 6,213.77

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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.