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Finding the Fourth Proportional to 16,379.60, 24,569.40 and 8,603.60

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Solution

The fourth proportional to 16,379.60, 24,569.40 and 8,603.60 is: 12,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,379.60 : 24,569.40 = 8,603.60 : x
  2. Step 2: Convert to fraction form
    16,379.60/24,569.40 = 8,603.60/x
  3. Step 3: Cross multiply
    16,379.60x = 24,569.40 × 8,603.60
  4. Step 4: Simplify right side
    16,379.60x = 211,385,289.84
  5. Step 5: Solve for x
    x = 211,385,289.84/16,379.60
  6. Step 6: Final answer
    x = 12,905.40

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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.