Home / 18,158.45-27,238.34-5,011.81

Finding the Fourth Proportional to 18,158.45, 27,238.34 and 5,011.81

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Solution

The fourth proportional to 18,158.45, 27,238.34 and 5,011.81 is: 7,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.45 : 27,238.34 = 5,011.81 : x
  2. Step 2: Convert to fraction form
    18,158.45/27,238.34 = 5,011.81/x
  3. Step 3: Cross multiply
    18,158.45x = 27,238.34 × 5,011.81
  4. Step 4: Simplify right side
    18,158.45x = 136,513,329.23
  5. Step 5: Solve for x
    x = 136,513,329.23/18,158.45
  6. Step 6: Final answer
    x = 7,517.90

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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.