Home / 18,337.36-27,502.08-5,186.20

Finding the Fourth Proportional to 18,337.36, 27,502.08 and 5,186.20

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Solution

The fourth proportional to 18,337.36, 27,502.08 and 5,186.20 is: 7,778.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337.36 : 27,502.08 = 5,186.20 : x
  2. Step 2: Convert to fraction form
    18,337.36/27,502.08 = 5,186.20/x
  3. Step 3: Cross multiply
    18,337.36x = 27,502.08 × 5,186.20
  4. Step 4: Simplify right side
    18,337.36x = 142,631,287.30
  5. Step 5: Solve for x
    x = 142,631,287.30/18,337.36
  6. Step 6: Final answer
    x = 7,778.18

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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.