Home / 13,902.89-19,186.24-7,614.86

Finding the Fourth Proportional to 13,902.89, 19,186.24 and 7,614.86

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Solution

The fourth proportional to 13,902.89, 19,186.24 and 7,614.86 is: 10,508.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.89 : 19,186.24 = 7,614.86 : x
  2. Step 2: Convert to fraction form
    13,902.89/19,186.24 = 7,614.86/x
  3. Step 3: Cross multiply
    13,902.89x = 19,186.24 × 7,614.86
  4. Step 4: Simplify right side
    13,902.89x = 146,100,531.53
  5. Step 5: Solve for x
    x = 146,100,531.53/13,902.89
  6. Step 6: Final answer
    x = 10,508.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.