Home / 18,337.68-27,508.84-5,190.06

Finding the Fourth Proportional to 18,337.68, 27,508.84 and 5,190.06

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Solution

The fourth proportional to 18,337.68, 27,508.84 and 5,190.06 is: 7,785.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.68 : 27,508.84 = 5,190.06 : x
  2. Step 2: Convert to fraction form
    18,337.68/27,508.84 = 5,190.06/x
  3. Step 3: Cross multiply
    18,337.68x = 27,508.84 × 5,190.06
  4. Step 4: Simplify right side
    18,337.68x = 142,772,530.13
  5. Step 5: Solve for x
    x = 142,772,530.13/18,337.68
  6. Step 6: Final answer
    x = 7,785.75

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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.