Home / 18,238.39-27,337.54-7,143.01

Finding the Fourth Proportional to 18,238.39, 27,337.54 and 7,143.01

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Solution

The fourth proportional to 18,238.39, 27,337.54 and 7,143.01 is: 10,706.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.39 : 27,337.54 = 7,143.01 : x
  2. Step 2: Convert to fraction form
    18,238.39/27,337.54 = 7,143.01/x
  3. Step 3: Cross multiply
    18,238.39x = 27,337.54 × 7,143.01
  4. Step 4: Simplify right side
    18,238.39x = 195,272,321.60
  5. Step 5: Solve for x
    x = 195,272,321.60/18,238.39
  6. Step 6: Final answer
    x = 10,706.66

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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.