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Finding the Fourth Proportional to 18,368.88, 27,555 and 5,889.24

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Solution

The fourth proportional to 18,368.88, 27,555 and 5,889.24 is: 8,834.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.88 : 27,555 = 5,889.24 : x
  2. Step 2: Convert to fraction form
    18,368.88/27,555 = 5,889.24/x
  3. Step 3: Cross multiply
    18,368.88x = 27,555 × 5,889.24
  4. Step 4: Simplify right side
    18,368.88x = 162,278,008.20
  5. Step 5: Solve for x
    x = 162,278,008.20/18,368.88
  6. Step 6: Final answer
    x = 8,834.40

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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.