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Finding the Fourth Proportional to 12,045.86, 18,045.41 and 8,877.54

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Solution

The fourth proportional to 12,045.86, 18,045.41 and 8,877.54 is: 13,299.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.86 : 18,045.41 = 8,877.54 : x
  2. Step 2: Convert to fraction form
    12,045.86/18,045.41 = 8,877.54/x
  3. Step 3: Cross multiply
    12,045.86x = 18,045.41 × 8,877.54
  4. Step 4: Simplify right side
    12,045.86x = 160,198,804.70
  5. Step 5: Solve for x
    x = 160,198,804.70/12,045.86
  6. Step 6: Final answer
    x = 13,299.08

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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.