Home / 10,081.44-15,120.53-3,155.94

Finding the Fourth Proportional to 10,081.44, 15,120.53 and 3,155.94

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Solution

The fourth proportional to 10,081.44, 15,120.53 and 3,155.94 is: 4,733.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.44 : 15,120.53 = 3,155.94 : x
  2. Step 2: Convert to fraction form
    10,081.44/15,120.53 = 3,155.94/x
  3. Step 3: Cross multiply
    10,081.44x = 15,120.53 × 3,155.94
  4. Step 4: Simplify right side
    10,081.44x = 47,719,417.74
  5. Step 5: Solve for x
    x = 47,719,417.74/10,081.44
  6. Step 6: Final answer
    x = 4,733.40

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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.