Home / 15,114.67-20,852.26-8,740.09

Finding the Fourth Proportional to 15,114.67, 20,852.26 and 8,740.09

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Solution

The fourth proportional to 15,114.67, 20,852.26 and 8,740.09 is: 12,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.67 : 20,852.26 = 8,740.09 : x
  2. Step 2: Convert to fraction form
    15,114.67/20,852.26 = 8,740.09/x
  3. Step 3: Cross multiply
    15,114.67x = 20,852.26 × 8,740.09
  4. Step 4: Simplify right side
    15,114.67x = 182,250,629.10
  5. Step 5: Solve for x
    x = 182,250,629.10/15,114.67
  6. Step 6: Final answer
    x = 12,057.86

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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.