Home / 10,119.89-15,181.10-5,433.45

Finding the Fourth Proportional to 10,119.89, 15,181.10 and 5,433.45

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Solution

The fourth proportional to 10,119.89, 15,181.10 and 5,433.45 is: 8,150.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.89 : 15,181.10 = 5,433.45 : x
  2. Step 2: Convert to fraction form
    10,119.89/15,181.10 = 5,433.45/x
  3. Step 3: Cross multiply
    10,119.89x = 15,181.10 × 5,433.45
  4. Step 4: Simplify right side
    10,119.89x = 82,485,720.63
  5. Step 5: Solve for x
    x = 82,485,720.63/10,119.89
  6. Step 6: Final answer
    x = 8,150.86

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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.