Home / 10,255.28-15,383.04-3,686.16

Finding the Fourth Proportional to 10,255.28, 15,383.04 and 3,686.16

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Solution

The fourth proportional to 10,255.28, 15,383.04 and 3,686.16 is: 5,529.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.28 : 15,383.04 = 3,686.16 : x
  2. Step 2: Convert to fraction form
    10,255.28/15,383.04 = 3,686.16/x
  3. Step 3: Cross multiply
    10,255.28x = 15,383.04 × 3,686.16
  4. Step 4: Simplify right side
    10,255.28x = 56,704,346.73
  5. Step 5: Solve for x
    x = 56,704,346.73/10,255.28
  6. Step 6: Final answer
    x = 5,529.28

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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.