Home / 11,385.56-17,077.44-5,143.88

Finding the Fourth Proportional to 11,385.56, 17,077.44 and 5,143.88

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Solution

The fourth proportional to 11,385.56, 17,077.44 and 5,143.88 is: 7,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.56 : 17,077.44 = 5,143.88 : x
  2. Step 2: Convert to fraction form
    11,385.56/17,077.44 = 5,143.88/x
  3. Step 3: Cross multiply
    11,385.56x = 17,077.44 × 5,143.88
  4. Step 4: Simplify right side
    11,385.56x = 87,844,302.07
  5. Step 5: Solve for x
    x = 87,844,302.07/11,385.56
  6. Step 6: Final answer
    x = 7,715.41

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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.