Home / 13,556.52-20,242.50-11,961.95

Finding the Fourth Proportional to 13,556.52, 20,242.50 and 11,961.95

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Solution

The fourth proportional to 13,556.52, 20,242.50 and 11,961.95 is: 17,861.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.52 : 20,242.50 = 11,961.95 : x
  2. Step 2: Convert to fraction form
    13,556.52/20,242.50 = 11,961.95/x
  3. Step 3: Cross multiply
    13,556.52x = 20,242.50 × 11,961.95
  4. Step 4: Simplify right side
    13,556.52x = 242,139,881.71
  5. Step 5: Solve for x
    x = 242,139,881.71/13,556.52
  6. Step 6: Final answer
    x = 17,861.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.