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Finding the Fourth Proportional to 12,152.66, 18,230.81 and 4,363.29

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Solution

The fourth proportional to 12,152.66, 18,230.81 and 4,363.29 is: 6,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.66 : 18,230.81 = 4,363.29 : x
  2. Step 2: Convert to fraction form
    12,152.66/18,230.81 = 4,363.29/x
  3. Step 3: Cross multiply
    12,152.66x = 18,230.81 × 4,363.29
  4. Step 4: Simplify right side
    12,152.66x = 79,546,322.85
  5. Step 5: Solve for x
    x = 79,546,322.85/12,152.66
  6. Step 6: Final answer
    x = 6,545.59

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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.