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Finding the Fourth Proportional to 16,379.40, 22,603.56 and 8,927.40

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Solution

The fourth proportional to 16,379.40, 22,603.56 and 8,927.40 is: 12,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,379.40 : 22,603.56 = 8,927.40 : x
  2. Step 2: Convert to fraction form
    16,379.40/22,603.56 = 8,927.40/x
  3. Step 3: Cross multiply
    16,379.40x = 22,603.56 × 8,927.40
  4. Step 4: Simplify right side
    16,379.40x = 201,791,021.54
  5. Step 5: Solve for x
    x = 201,791,021.54/16,379.40
  6. Step 6: Final answer
    x = 12,319.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.