Home / 15,629.60-21,568.86-8,556.03

Finding the Fourth Proportional to 15,629.60, 21,568.86 and 8,556.03

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Solution

The fourth proportional to 15,629.60, 21,568.86 and 8,556.03 is: 11,807.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.60 : 21,568.86 = 8,556.03 : x
  2. Step 2: Convert to fraction form
    15,629.60/21,568.86 = 8,556.03/x
  3. Step 3: Cross multiply
    15,629.60x = 21,568.86 × 8,556.03
  4. Step 4: Simplify right side
    15,629.60x = 184,543,813.23
  5. Step 5: Solve for x
    x = 184,543,813.23/15,629.60
  6. Step 6: Final answer
    x = 11,807.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.