Home / 13,020.96-19,532.64-4,255.92

Finding the Fourth Proportional to 13,020.96, 19,532.64 and 4,255.92

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Solution

The fourth proportional to 13,020.96, 19,532.64 and 4,255.92 is: 6,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.96 : 19,532.64 = 4,255.92 : x
  2. Step 2: Convert to fraction form
    13,020.96/19,532.64 = 4,255.92/x
  3. Step 3: Cross multiply
    13,020.96x = 19,532.64 × 4,255.92
  4. Step 4: Simplify right side
    13,020.96x = 83,129,353.23
  5. Step 5: Solve for x
    x = 83,129,353.23/13,020.96
  6. Step 6: Final answer
    x = 6,384.27

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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.