Home / 15,057.42-20,777.16-8,341.38

Finding the Fourth Proportional to 15,057.42, 20,777.16 and 8,341.38

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Solution

The fourth proportional to 15,057.42, 20,777.16 and 8,341.38 is: 11,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057.42 : 20,777.16 = 8,341.38 : x
  2. Step 2: Convert to fraction form
    15,057.42/20,777.16 = 8,341.38/x
  3. Step 3: Cross multiply
    15,057.42x = 20,777.16 × 8,341.38
  4. Step 4: Simplify right side
    15,057.42x = 173,310,186.88
  5. Step 5: Solve for x
    x = 173,310,186.88/15,057.42
  6. Step 6: Final answer
    x = 11,509.95

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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.