Home / 14,112.56-21,168.84-5,791.16

Finding the Fourth Proportional to 14,112.56, 21,168.84 and 5,791.16

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Solution

The fourth proportional to 14,112.56, 21,168.84 and 5,791.16 is: 8,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.56 : 21,168.84 = 5,791.16 : x
  2. Step 2: Convert to fraction form
    14,112.56/21,168.84 = 5,791.16/x
  3. Step 3: Cross multiply
    14,112.56x = 21,168.84 × 5,791.16
  4. Step 4: Simplify right side
    14,112.56x = 122,592,139.45
  5. Step 5: Solve for x
    x = 122,592,139.45/14,112.56
  6. Step 6: Final answer
    x = 8,686.74

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Similar ratio
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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.