Home / 15,028.96-20,743.68-8,740.48

Finding the Fourth Proportional to 15,028.96, 20,743.68 and 8,740.48

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Solution

The fourth proportional to 15,028.96, 20,743.68 and 8,740.48 is: 12,064.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.96 : 20,743.68 = 8,740.48 : x
  2. Step 2: Convert to fraction form
    15,028.96/20,743.68 = 8,740.48/x
  3. Step 3: Cross multiply
    15,028.96x = 20,743.68 × 8,740.48
  4. Step 4: Simplify right side
    15,028.96x = 181,309,720.17
  5. Step 5: Solve for x
    x = 181,309,720.17/15,028.96
  6. Step 6: Final answer
    x = 12,064.02

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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.