Home / 10,102.30-15,146.16-4,255.72

Finding the Fourth Proportional to 10,102.30, 15,146.16 and 4,255.72

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Solution

The fourth proportional to 10,102.30, 15,146.16 and 4,255.72 is: 6,380.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.30 : 15,146.16 = 4,255.72 : x
  2. Step 2: Convert to fraction form
    10,102.30/15,146.16 = 4,255.72/x
  3. Step 3: Cross multiply
    10,102.30x = 15,146.16 × 4,255.72
  4. Step 4: Simplify right side
    10,102.30x = 64,457,816.04
  5. Step 5: Solve for x
    x = 64,457,816.04/10,102.30
  6. Step 6: Final answer
    x = 6,380.51

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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.