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Finding the Fourth Proportional to 18,337.93, 27,507.95 and 5,189.20

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Solution

The fourth proportional to 18,337.93, 27,507.95 and 5,189.20 is: 7,784.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.93 : 27,507.95 = 5,189.20 : x
  2. Step 2: Convert to fraction form
    18,337.93/27,507.95 = 5,189.20/x
  3. Step 3: Cross multiply
    18,337.93x = 27,507.95 × 5,189.20
  4. Step 4: Simplify right side
    18,337.93x = 142,744,090.65
  5. Step 5: Solve for x
    x = 142,744,090.65/18,337.93
  6. Step 6: Final answer
    x = 7,784.09

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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.