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Finding the Fourth Proportional to 12,152.48, 18,162.13 and 8,872.48

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Solution

The fourth proportional to 12,152.48, 18,162.13 and 8,872.48 is: 13,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.48 : 18,162.13 = 8,872.48 : x
  2. Step 2: Convert to fraction form
    12,152.48/18,162.13 = 8,872.48/x
  3. Step 3: Cross multiply
    12,152.48x = 18,162.13 × 8,872.48
  4. Step 4: Simplify right side
    12,152.48x = 161,143,135.18
  5. Step 5: Solve for x
    x = 161,143,135.18/12,152.48
  6. Step 6: Final answer
    x = 13,260.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.