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Finding the Fourth Proportional to 10,700.70, 16,051.05 and 8,108.70

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Solution

The fourth proportional to 10,700.70, 16,051.05 and 8,108.70 is: 12,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,700.70 : 16,051.05 = 8,108.70 : x
  2. Step 2: Convert to fraction form
    10,700.70/16,051.05 = 8,108.70/x
  3. Step 3: Cross multiply
    10,700.70x = 16,051.05 × 8,108.70
  4. Step 4: Simplify right side
    10,700.70x = 130,153,149.14
  5. Step 5: Solve for x
    x = 130,153,149.14/10,700.70
  6. Step 6: Final answer
    x = 12,163.05

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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.