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Finding the Fourth Proportional to 6,970.14, 9,619.11 and 4,136.88

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Solution

The fourth proportional to 6,970.14, 9,619.11 and 4,136.88 is: 5,709.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.14 : 9,619.11 = 4,136.88 : x
  2. Step 2: Convert to fraction form
    6,970.14/9,619.11 = 4,136.88/x
  3. Step 3: Cross multiply
    6,970.14x = 9,619.11 × 4,136.88
  4. Step 4: Simplify right side
    6,970.14x = 39,793,103.78
  5. Step 5: Solve for x
    x = 39,793,103.78/6,970.14
  6. Step 6: Final answer
    x = 5,709.08

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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.