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Finding the Fourth Proportional to 18,095.88, 27,148.20 and 9,189.30

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Solution

The fourth proportional to 18,095.88, 27,148.20 and 9,189.30 is: 13,786.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,095.88 : 27,148.20 = 9,189.30 : x
  2. Step 2: Convert to fraction form
    18,095.88/27,148.20 = 9,189.30/x
  3. Step 3: Cross multiply
    18,095.88x = 27,148.20 × 9,189.30
  4. Step 4: Simplify right side
    18,095.88x = 249,472,954.26
  5. Step 5: Solve for x
    x = 249,472,954.26/18,095.88
  6. Step 6: Final answer
    x = 13,786.17

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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.