Home / 18,389.46-27,575.91-5,238.84

Finding the Fourth Proportional to 18,389.46, 27,575.91 and 5,238.84

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Solution

The fourth proportional to 18,389.46, 27,575.91 and 5,238.84 is: 7,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.46 : 27,575.91 = 5,238.84 : x
  2. Step 2: Convert to fraction form
    18,389.46/27,575.91 = 5,238.84/x
  3. Step 3: Cross multiply
    18,389.46x = 27,575.91 × 5,238.84
  4. Step 4: Simplify right side
    18,389.46x = 144,465,780.34
  5. Step 5: Solve for x
    x = 144,465,780.34/18,389.46
  6. Step 6: Final answer
    x = 7,855.90

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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.