Home / 13,556.98-20,333.52-5,240.90

Finding the Fourth Proportional to 13,556.98, 20,333.52 and 5,240.90

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Solution

The fourth proportional to 13,556.98, 20,333.52 and 5,240.90 is: 7,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,556.98 : 20,333.52 = 5,240.90 : x
  2. Step 2: Convert to fraction form
    13,556.98/20,333.52 = 5,240.90/x
  3. Step 3: Cross multiply
    13,556.98x = 20,333.52 × 5,240.90
  4. Step 4: Simplify right side
    13,556.98x = 106,565,944.97
  5. Step 5: Solve for x
    x = 106,565,944.97/13,556.98
  6. Step 6: Final answer
    x = 7,860.60

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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.