Home / 13,782.08-20,660.58-5,010.80

Finding the Fourth Proportional to 13,782.08, 20,660.58 and 5,010.80

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Solution

The fourth proportional to 13,782.08, 20,660.58 and 5,010.80 is: 7,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.08 : 20,660.58 = 5,010.80 : x
  2. Step 2: Convert to fraction form
    13,782.08/20,660.58 = 5,010.80/x
  3. Step 3: Cross multiply
    13,782.08x = 20,660.58 × 5,010.80
  4. Step 4: Simplify right side
    13,782.08x = 103,526,034.26
  5. Step 5: Solve for x
    x = 103,526,034.26/13,782.08
  6. Step 6: Final answer
    x = 7,511.64

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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.