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Finding the Fourth Proportional to 18,167.79, 27,251.70 and 5,020.18

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Solution

The fourth proportional to 18,167.79, 27,251.70 and 5,020.18 is: 7,530.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.79 : 27,251.70 = 5,020.18 : x
  2. Step 2: Convert to fraction form
    18,167.79/27,251.70 = 5,020.18/x
  3. Step 3: Cross multiply
    18,167.79x = 27,251.70 × 5,020.18
  4. Step 4: Simplify right side
    18,167.79x = 136,808,303.05
  5. Step 5: Solve for x
    x = 136,808,303.05/18,167.79
  6. Step 6: Final answer
    x = 7,530.27

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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.