Home / 13,516.65-20,255.88-6,393.27

Finding the Fourth Proportional to 13,516.65, 20,255.88 and 6,393.27

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Solution

The fourth proportional to 13,516.65, 20,255.88 and 6,393.27 is: 9,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.65 : 20,255.88 = 6,393.27 : x
  2. Step 2: Convert to fraction form
    13,516.65/20,255.88 = 6,393.27/x
  3. Step 3: Cross multiply
    13,516.65x = 20,255.88 × 6,393.27
  4. Step 4: Simplify right side
    13,516.65x = 129,501,309.93
  5. Step 5: Solve for x
    x = 129,501,309.93/13,516.65
  6. Step 6: Final answer
    x = 9,580.87

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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.