Home / 9,122.96-13,686.04-3,786.14

Finding the Fourth Proportional to 9,122.96, 13,686.04 and 3,786.14

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Solution

The fourth proportional to 9,122.96, 13,686.04 and 3,786.14 is: 5,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.96 : 13,686.04 = 3,786.14 : x
  2. Step 2: Convert to fraction form
    9,122.96/13,686.04 = 3,786.14/x
  3. Step 3: Cross multiply
    9,122.96x = 13,686.04 × 3,786.14
  4. Step 4: Simplify right side
    9,122.96x = 51,817,263.49
  5. Step 5: Solve for x
    x = 51,817,263.49/9,122.96
  6. Step 6: Final answer
    x = 5,679.87

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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.