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Finding the Fourth Proportional to 18,630, 27,952.70 and 7,544.61

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Solution

The fourth proportional to 18,630, 27,952.70 and 7,544.61 is: 11,320.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630 : 27,952.70 = 7,544.61 : x
  2. Step 2: Convert to fraction form
    18,630/27,952.70 = 7,544.61/x
  3. Step 3: Cross multiply
    18,630x = 27,952.70 × 7,544.61
  4. Step 4: Simplify right side
    18,630x = 210,892,182.22
  5. Step 5: Solve for x
    x = 210,892,182.22/18,630
  6. Step 6: Final answer
    x = 11,320.03

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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.