Home / 10,172.28-15,258.95-3,157.14

Finding the Fourth Proportional to 10,172.28, 15,258.95 and 3,157.14

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Solution

The fourth proportional to 10,172.28, 15,258.95 and 3,157.14 is: 4,735.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.28 : 15,258.95 = 3,157.14 : x
  2. Step 2: Convert to fraction form
    10,172.28/15,258.95 = 3,157.14/x
  3. Step 3: Cross multiply
    10,172.28x = 15,258.95 × 3,157.14
  4. Step 4: Simplify right side
    10,172.28x = 48,174,625.62
  5. Step 5: Solve for x
    x = 48,174,625.62/10,172.28
  6. Step 6: Final answer
    x = 4,735.87

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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.