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Finding the Fourth Proportional to 18,363.30, 27,545.85 and 9,615.30

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Solution

The fourth proportional to 18,363.30, 27,545.85 and 9,615.30 is: 14,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.30 : 27,545.85 = 9,615.30 : x
  2. Step 2: Convert to fraction form
    18,363.30/27,545.85 = 9,615.30/x
  3. Step 3: Cross multiply
    18,363.30x = 27,545.85 × 9,615.30
  4. Step 4: Simplify right side
    18,363.30x = 264,861,611.51
  5. Step 5: Solve for x
    x = 264,861,611.51/18,363.30
  6. Step 6: Final answer
    x = 14,423.42

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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.