Home / 10,081.63-15,120.42-9,581.49

Finding the Fourth Proportional to 10,081.63, 15,120.42 and 9,581.49

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Solution

The fourth proportional to 10,081.63, 15,120.42 and 9,581.49 is: 14,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.63 : 15,120.42 = 9,581.49 : x
  2. Step 2: Convert to fraction form
    10,081.63/15,120.42 = 9,581.49/x
  3. Step 3: Cross multiply
    10,081.63x = 15,120.42 × 9,581.49
  4. Step 4: Simplify right side
    10,081.63x = 144,876,170.99
  5. Step 5: Solve for x
    x = 144,876,170.99/10,081.63
  6. Step 6: Final answer
    x = 14,370.31

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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.