Home / 10,082.64-15,126.52-3,157.20

Finding the Fourth Proportional to 10,082.64, 15,126.52 and 3,157.20

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Solution

The fourth proportional to 10,082.64, 15,126.52 and 3,157.20 is: 4,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.64 : 15,126.52 = 3,157.20 : x
  2. Step 2: Convert to fraction form
    10,082.64/15,126.52 = 3,157.20/x
  3. Step 3: Cross multiply
    10,082.64x = 15,126.52 × 3,157.20
  4. Step 4: Simplify right side
    10,082.64x = 47,757,448.94
  5. Step 5: Solve for x
    x = 47,757,448.94/10,082.64
  6. Step 6: Final answer
    x = 4,736.60

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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.