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Finding the Fourth Proportional to 14,608.86, 21,890.25 and 8,768.22

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Solution

The fourth proportional to 14,608.86, 21,890.25 and 8,768.22 is: 13,138.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608.86 : 21,890.25 = 8,768.22 : x
  2. Step 2: Convert to fraction form
    14,608.86/21,890.25 = 8,768.22/x
  3. Step 3: Cross multiply
    14,608.86x = 21,890.25 × 8,768.22
  4. Step 4: Simplify right side
    14,608.86x = 191,938,527.86
  5. Step 5: Solve for x
    x = 191,938,527.86/14,608.86
  6. Step 6: Final answer
    x = 13,138.50

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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.