Home / 13,330.50-18,396.09-7,741.86

Finding the Fourth Proportional to 13,330.50, 18,396.09 and 7,741.86

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Solution

The fourth proportional to 13,330.50, 18,396.09 and 7,741.86 is: 10,683.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.50 : 18,396.09 = 7,741.86 : x
  2. Step 2: Convert to fraction form
    13,330.50/18,396.09 = 7,741.86/x
  3. Step 3: Cross multiply
    13,330.50x = 18,396.09 × 7,741.86
  4. Step 4: Simplify right side
    13,330.50x = 142,419,953.33
  5. Step 5: Solve for x
    x = 142,419,953.33/13,330.50
  6. Step 6: Final answer
    x = 10,683.77

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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.