Home / 13,556.30-20,307.45-11,932.70

Finding the Fourth Proportional to 13,556.30, 20,307.45 and 11,932.70

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Solution

The fourth proportional to 13,556.30, 20,307.45 and 11,932.70 is: 17,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.30 : 20,307.45 = 11,932.70 : x
  2. Step 2: Convert to fraction form
    13,556.30/20,307.45 = 11,932.70/x
  3. Step 3: Cross multiply
    13,556.30x = 20,307.45 × 11,932.70
  4. Step 4: Simplify right side
    13,556.30x = 242,322,708.62
  5. Step 5: Solve for x
    x = 242,322,708.62/13,556.30
  6. Step 6: Final answer
    x = 17,875.28

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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.