Home / 13,486.73-20,220.52-5,159.73

Finding the Fourth Proportional to 13,486.73, 20,220.52 and 5,159.73

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Solution

The fourth proportional to 13,486.73, 20,220.52 and 5,159.73 is: 7,735.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.73 : 20,220.52 = 5,159.73 : x
  2. Step 2: Convert to fraction form
    13,486.73/20,220.52 = 5,159.73/x
  3. Step 3: Cross multiply
    13,486.73x = 20,220.52 × 5,159.73
  4. Step 4: Simplify right side
    13,486.73x = 104,332,423.66
  5. Step 5: Solve for x
    x = 104,332,423.66/13,486.73
  6. Step 6: Final answer
    x = 7,735.93

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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.