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Finding the Fourth Proportional to 10,834.20, 16,248.06 and 8,647.20

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Solution

The fourth proportional to 10,834.20, 16,248.06 and 8,647.20 is: 12,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,834.20 : 16,248.06 = 8,647.20 : x
  2. Step 2: Convert to fraction form
    10,834.20/16,248.06 = 8,647.20/x
  3. Step 3: Cross multiply
    10,834.20x = 16,248.06 × 8,647.20
  4. Step 4: Simplify right side
    10,834.20x = 140,500,224.43
  5. Step 5: Solve for x
    x = 140,500,224.43/10,834.20
  6. Step 6: Final answer
    x = 12,968.21

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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.