Home / 13,209.55-19,816.91-4,889.64

Finding the Fourth Proportional to 13,209.55, 19,816.91 and 4,889.64

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Solution

The fourth proportional to 13,209.55, 19,816.91 and 4,889.64 is: 7,335.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.55 : 19,816.91 = 4,889.64 : x
  2. Step 2: Convert to fraction form
    13,209.55/19,816.91 = 4,889.64/x
  3. Step 3: Cross multiply
    13,209.55x = 19,816.91 × 4,889.64
  4. Step 4: Simplify right side
    13,209.55x = 96,897,456.73
  5. Step 5: Solve for x
    x = 96,897,456.73/13,209.55
  6. Step 6: Final answer
    x = 7,335.41

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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.