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Finding the Fourth Proportional to 18,167.10, 27,230.40 and 7,070.10

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Solution

The fourth proportional to 18,167.10, 27,230.40 and 7,070.10 is: 10,597.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.10 : 27,230.40 = 7,070.10 : x
  2. Step 2: Convert to fraction form
    18,167.10/27,230.40 = 7,070.10/x
  3. Step 3: Cross multiply
    18,167.10x = 27,230.40 × 7,070.10
  4. Step 4: Simplify right side
    18,167.10x = 192,521,651.04
  5. Step 5: Solve for x
    x = 192,521,651.04/18,167.10
  6. Step 6: Final answer
    x = 10,597.27

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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.